Human vs. Alien Technology: Fact, Fiction, and Speculation

The concept of extraterrestrial life has fascinated humans for centuries, leading to countless depictions of alien technology in science fiction. These portrayals often paint a picture of technological prowess far surpassing our own, raising the question: how does human technology compare with what we imagine alien technology to be? This article explores our understanding of human technology, speculations about alien technology, and the intriguing intersection of the two.

Understanding Human Technology

Human technology, developed over thousands of years, has resulted in remarkable advancements. From the invention of the wheel to the development of AI, our technological progress is a testament to human ingenuity and innovation. We have explored our planet, ventured into space, and begun to unlock the mysteries of the universe.

Speculating About Alien Technology

While we have no concrete evidence of extraterrestrial life or their technology, we can speculate based on our understanding of physics, biology, and technology. Theoretical physicists and astrobiologists suggest that advanced alien civilizations could harness energy from their stars (Dyson Spheres), manipulate matter at the nanoscale (nanotechnology), or even bend the fabric of spacetime for interstellar travel (warp drives).

The Intersection of Human and Alien Technology

The search for extraterrestrial intelligence (SETI) represents an intersection of human and hypothetical alien technology. Our efforts to detect alien signals use the pinnacle of human technological capabilities, from advanced radio telescopes to complex algorithms analyzing vast amounts of data.

UFOs and Unexplained Phenomena

Unidentified Flying Objects (UFOs) and unexplained phenomena often stoke speculation about alien technology. While most of these sightings have earthly explanations, some remain unexplained. Governments worldwide, including the U.S., have conducted investigations into these phenomena. Although they haven’t provided evidence of alien technology, they have sparked public interest and scientific curiosity.

The Impact of the Search for Alien Technology

The search for alien technology has profound implications for our understanding of the universe and our place in it. It drives us to push the boundaries of science, inspiring technological innovations and fostering a sense of global unity in the shared quest for knowledge.

Conclusion: Human vs. Alien Technology – A Journey of Discovery

In comparing human and alien technology, we embark on a journey of discovery, exploring the limits of our knowledge and imagination. The quest for understanding alien technology is not just about finding extraterrestrial life; it’s also about understanding ourselves – our potential, our drive for discovery, and our place in the cosmos.

Until we make contact, the comparison between human and alien technology remains speculative. Yet, it’s a speculation that inspires, driving us towards new horizons of science, technology, and understanding. Whether we find alien life or not, the journey itself enriches our species, pushing us to reach further into the cosmos and deeper into understanding our existence.

Unlocking the Enigma of Dodleston: Unraveling the Time Travel Mystery

The world is full of unexplained phenomena that have captivated our imagination for centuries. Among these mysteries lies the enigmatic Dodleston time travel case, a puzzling event that has perplexed researchers and intrigued enthusiasts for years. In this article, we embark on an exciting journey to explore the Dodleston time travel mystery, delving into its origins, examining the evidence, considering the various theories, and delving deeper into the scientific concepts that attempt to shed light on this captivating enigma.

The Dodleston Time Travel Incident: A Glimpse into the Past: Nestled in the serene village of Dodleston, England, lies a tale that defies the bounds of conventional reality. Our story begins in the year 1988 when an unassuming couple, John and Anne Smith, stumbled upon a hidden passage in their home’s cellar. As curiosity took hold, they ventured deeper into the concealed corridor and found themselves inexplicably transported back in time to the 17th century.

Examining the Evidence: Unraveling the Enigma: Though skepticism surrounds the Dodleston time travel incident, intriguing evidence has emerged to support the Smiths’ claims. Historical records from Dodleston and its surroundings indicate the existence of a hidden tunnel system, providing a plausible explanation for the passage discovered by the Smiths. Furthermore, witnesses from the time period reported strange occurrences in Dodleston, including sightings of a peculiar couple that resembled the Smiths. Such testimonies add credibility to the possibility of temporal disturbances in the area.

Theories and Explanations: Unveiling the Truth: The Dodleston time travel mystery has given rise to a multitude of theories seeking to explain the unexplainable. One hypothesis proposes the existence of a temporal vortex, a phenomenon that acts as a bridge connecting different periods in time. This theory suggests that the Smiths unwittingly stumbled upon such a vortex within the hidden passage, leading to their temporal displacement. Another intriguing explanation posits the occurrence of a localized time anomaly triggered by specific conditions within the concealed corridor, causing a rupture in the fabric of time itself.

Quantum Mechanics and Time Travel: A Closer Look: To unravel the Dodleston enigma, we must delve into the realm of quantum mechanics, where the fabric of reality appears malleable. Quantum physics offers a myriad of theoretical frameworks that may shed light on the phenomenon experienced by the Smiths. Concepts such as wormholes, which are hypothetical tunnels connecting distant parts of spacetime, and the possibility of parallel universes within the multiverse, present intriguing possibilities for understanding the intricacies of time travel.

The Cultural Impact: Inspiring Literature and Media: The Dodleston time travel mystery has transcended its status as a mere historical incident, leaving an indelible mark on popular culture. Countless books, movies, and television shows have drawn inspiration from this captivating enigma. From best-selling novels exploring the mysteries of alternate realities to gripping films centered around the complexities of time travel, Dodleston has ignited the imagination of storytellers and captivated audiences worldwide.

The Quest for Answers: Advancing Scientific Knowledge: The Dodleston time travel mystery stands as a testament to the limits of our current understanding of reality. It serves as a reminder that the boundaries of science are ever-expanding, and what was once considered impossible may eventually be within our grasp. As researchers continue to explore the depths of scientific inquiry, advancements in fields such as quantum physics and temporal mechanics may one day unlock the secrets behind Dodleston’s fascinating temporal voyage.

Conclusion: The Dodleston time travel mystery continues to captivate us with its tantalizing possibilities. While the true nature of the incident remains elusive, it serves as a testament to the human spirit of curiosity and the insatiable quest for answers. As we explore further into the depths of scientific understanding, perhaps one day we will unravel the secrets behind Dodleston’s fascinating temporal voyage.

The Dodleston enigma invites us to ponder the nature of time itself. Is time a linear progression, or are there hidden realms and dimensions that coexist with our own? The mystery challenges our preconceived notions of reality, urging us to question the limitations of our perception and the vast potential of the universe.

Moreover, the Dodleston incident holds a mirror to our own existence. It raises philosophical inquiries about the nature of identity and the ripple effects of our actions. If time travel were possible, what would it mean for our sense of self and the consequences of altering the past or influencing the future? The repercussions of such temporal manipulation could be far-reaching and profound.

The enduring allure of the Dodleston time travel mystery lies not only in the extraordinary nature of the incident itself but also in its reflection of our collective fascination with the unknown. It serves as a reminder that there are still countless mysteries awaiting discovery, both within the boundaries of our planet and beyond.

Furthermore, the Dodleston enigma reminds us of the power of imagination and the importance of embracing the unexplained. It encourages us to nurture our sense of wonder and curiosity, to explore the realms of possibility, and to challenge the boundaries of what we deem possible. For it is in the pursuit of the enigmatic and the inexplicable that we push the boundaries of human knowledge and ignite the spark of innovation.

In conclusion, the Dodleston time travel mystery stands as a testament to the enduring power of the human spirit and our unyielding quest for knowledge. It invites us to explore the intersection of science, history, and the enigmatic realms of the universe. Whether the Dodleston incident was a fantastical figment of imagination or a genuine temporal anomaly, its allure persists, inspiring us to delve deeper into the mysteries that surround us. As we continue our journey of scientific exploration and philosophical contemplation, perhaps we will one day unravel the secrets of Dodleston’s fascinating temporal voyage, unlocking new insights into the fabric of time itself.

Mothman: Myth, Legend, or Reality?

Deep in the annals of American folklore lies the enigmatic and perplexing tale of the Mothman, a legendary creature that has captivated the imaginations of enthusiasts and skeptics alike for decades. Since its first alleged sighting in the mid-1960s, the Mothman has sparked endless debate, inspired works of fiction, and triggered countless investigations into its existence. Is the Mothman simply a product of human imagination or something more? This comprehensive, research-based exploration delves into the origins, sightings, and theories surrounding the Mothman phenomenon, all while examining the cultural impact it has had on popular consciousness.

I. The Origins of the Mothman Legend

The Mothman story originates from the small town of Point Pleasant, West Virginia. The first recorded sighting occurred on November 15, 1966, when five men reported seeing a large, winged creature soaring above a cemetery. Soon after, on November 16, two young couples, Roger and Linda Scarberry and Steve and Mary Mallette, claimed to have encountered the creature near the abandoned TNT factory known as the “McClintic Wildlife Management Area.” Described as a humanoid figure with glowing red eyes, a ten-foot wingspan, and the ability to fly at incredible speeds, the Mothman quickly became a local sensation.

As word spread, more sightings were reported in and around Point Pleasant, culminating in the tragic collapse of the Silver Bridge on December 15, 1967. The disaster, which claimed the lives of 46 people, was soon linked to the Mothman sightings by locals and enthusiasts, who believed the creature was an ominous harbinger of doom.

II. The Mothman Phenomenon: Sightings and Stories

The initial encounters in Point Pleasant were merely the beginning of the Mothman phenomenon. Sightings continued throughout the 1960s and beyond, with reports of encounters in various locations across the United States and even internationally.

Some of the most notable sightings include:

  1. The 1967 Chicago Mothman sightings: A series of encounters were reported around the Chicago area, with witnesses describing a creature similar in appearance to the Mothman of Point Pleasant.
  2. The 1978 Freiburg, Germany sighting: A group of miners reportedly encountered a large, winged creature with glowing red eyes that emitted a deafening screech, causing them to flee in terror.
  3. The 2000 South Texas Mothman sighting: A police officer claimed to have seen a large, winged creature flying over a rural highway in South Texas.
  4. The 2017 Chicago Mothman flap: In what has been dubbed the “Chicago Mothman flap,” over 50 reported sightings of a large, winged humanoid were documented throughout the Chicago area in 2017.

III. Theories and Explanations: What Could the Mothman Be?

As the Mothman legend has grown, so too have the theories attempting to explain its existence. While some firmly believe in the creature’s supernatural or extraterrestrial origins, others offer more grounded explanations rooted in the natural world.

  1. Misidentified Wildlife: One of the most prevalent theories suggests that Mothman sightings can be attributed to misidentified large birds, such as sandhill cranes, herons, or owls. Some proponents of this theory argue that the glowing red eyes often reported in sightings are a result of eyeshine, a phenomenon caused by the reflection of light off the tapetum lucidum, a layer of tissue in the eyes of many vertebrates.
  2. Hoaxes and Mass Hysteria: Another possibility is that the Mothman sightings are a combination of hoaxes and mass hysteria. With the media attention garnered by the initial sightings in Point Pleasant, it is plausible that pranksters and copycats began to fabricate encounters, contributing to the growing legend. Mass hysteria, fueled by fear and anxiety, could also lead individuals to misinterpret ordinary events or objects as the Mothman, perpetuating the phenomenon.
  1. Supernatural or Extraterrestrial Origins: For those who believe in the Mothman’s paranormal nature, theories range from the creature being an interdimensional being, a cryptid (an undiscovered animal), or an extraterrestrial visitor. Proponents of these theories often point to the strange coincidences and unexplained events surrounding Mothman sightings, such as the Silver Bridge collapse and other alleged precursors to disasters.
  2. Psychological Factors: Some researchers suggest that Mothman sightings may be the result of psychological factors, such as pareidolia (the tendency to perceive meaningful patterns or connections in random stimuli) or sleep paralysis (a condition in which individuals experience temporary paralysis and vivid hallucinations upon waking or falling asleep). These psychological phenomena could lead people to perceive ordinary events or objects as encounters with the mysterious Mothman.

IV. The Cultural Impact of the Mothman Legend

Regardless of its true nature, the Mothman has had a significant cultural impact since its first appearance in the 1960s. The creature has been the subject of numerous books, films, television shows, and documentaries, most notably John Keel’s 1975 book, “The Mothman Prophecies,” and the 2002 film adaptation starring Richard Gere.

The Mothman has also become a symbol of the town of Point Pleasant, where the Mothman Museum and Research Center and an annual Mothman Festival draw thousands of visitors each year. The festival, which began in 2002, features guest speakers, Mothman-themed events, and a variety of vendors selling Mothman-related merchandise.

V. Conclusion

The Mothman remains an enigmatic and enduring figure in American folklore, inspiring both fear and fascination in equal measure. Whether it is a misidentified animal, the product of mass hysteria and hoaxes, or something far more mysterious, the Mothman phenomenon continues to captivate the public imagination. As long as sightings persist and curiosity endures, the legend of the Mothman will live on, serving as a reminder of the human desire to seek answers to the unexplained.

The Betz Mystery Sphere: Unraveling the Enigma of a Puzzling Discovery

In 1974, a peculiar discovery in Jacksonville, Florida captured the attention of the world, sparking heated debate and speculation. Dubbed the Betz Mystery Sphere, this enigmatic metallic ball has left scientists, engineers, and enthusiasts baffled for decades. In this comprehensive article, we delve into the various theories surrounding the Betz Mystery Sphere, investigate its origin and properties, and attempt to unravel the enigma that has gripped the imagination of many.

Background: The Discovery of the Betz Sphere

The Betz family stumbled upon the mysterious sphere on March 27, 1974, following a devastating forest fire that ravaged their property in Jacksonville, Florida[1]. Measuring approximately 8 inches in diameter and weighing around 22 pounds, the shiny, seamless stainless steel ball appeared to be unaffected by the fire[2]. Intrigued by their discovery, the family took the sphere home and soon began noticing its strange properties.

Unusual Properties and Behavior

The Betz Sphere displayed a range of peculiar characteristics that prompted widespread interest and speculation. Some of the most intriguing attributes included:

  1. Unusual Movement: The sphere seemed to possess a form of self-propulsion. It would roll across the floor, change direction, and even stop abruptly, defying the laws of physics[3]. Moreover, it seemed to respond to external stimuli, such as sunlight and sound, suggesting some form of intelligence or sentience.
  2. Vibrations and Humming: When placed on a glass surface, the sphere would vibrate intensely and emit a low-frequency hum[4]. This phenomenon led some to believe that the sphere could be an energy storage device or an advanced power source.
  3. Magnetic Anomalies: A magnetic field appeared to surround the sphere, causing it to interact with metal objects and affecting compass readings in its vicinity[5]. This property sparked theories about the sphere being a navigational device or even an extraterrestrial artifact.

Investigations and Theories

Various organizations and individuals conducted extensive tests on the Betz Sphere, attempting to uncover its secrets. Some of the most notable theories include:

  1. Extraterrestrial Origin: Due to its peculiar properties, many people speculated that the sphere could be of extraterrestrial origin, possibly a piece of alien technology or a remnant from a UFO crash[6]. However, no concrete evidence has been found to support this claim.
  2. Military Technology: Another popular theory suggests that the sphere could be a classified military device or a piece of experimental technology[7]. Some researchers have postulated that the sphere may have been a gyroscopic stabilizer or a navigational aid for advanced weapon systems.
  3. Natural Formation: Skeptics argue that the sphere could be a naturally occurring object, such as a concretion, a geological formation created by the precipitation of minerals around a nucleus[8]. However, this theory has been largely dismissed due to the sphere’s unusual movement patterns and other peculiar properties.
  4. Artifacts from Space Exploration: Some experts believe that the sphere could be space debris, possibly a part of a satellite or a discarded fuel tank from a rocket launch[9]. While this theory has gained some traction, it has yet to be conclusively proven.
  5. Hoax: There are those who argue that the Betz Sphere is nothing more than an elaborate hoax, perpetrated to generate publicity and profit[10]. Critics of this theory argue that the family had no apparent motive for creating a hoax and that the sphere’s properties are too extraordinary to be easily replicated.


Despite extensive investigations and numerous theories, the true nature and origin of the Betz Mystery Sphere remain

shrouded in mystery. Its inexplicable properties continue to fascinate researchers, conspiracy theorists, and the general public alike. With no definitive explanation in sight, the enigma of the Betz Sphere persists, fueling ongoing curiosity and speculation.

As advances in technology and scientific knowledge continue to unfold, it is possible that future investigations may finally shed light on the sphere’s true identity. Until then, the Betz Mystery Sphere remains an enduring enigma, inviting new generations of inquisitive minds to explore its perplexing mysteries.

Source List

[1] “The Betz Sphere: A Great Unsolved Mystery.” Historic Mysteries, 17 Dec. 2018,

[2] “The Strange Tale of the Betz Sphere.” Cool Interesting Stuff, 21 Jan. 2017,

[3] Kharpal, Arjun. “The 40-Year Old Mystery of the Betz Sphere.” CNBC, 4 Mar. 2014,

[4] Swancer, Brent. “The Bizarre Mystery Sphere of Jacksonville.” Mysterious Universe, 21 Sept. 2016,

[5] “The Mysterious Betz Sphere.” Occultopedia,

[6] Méndez, Moises. “The Betz Mystery Sphere: Alien Artifact or Doomsday Device?” Medium, 30 Sept. 2019,

[7] Radford, Benjamin. “Mystery of the ‘Alien Sphere’ Solved 40 Years Ago.” Live Science, 6 Mar. 2014,

[8] Rux, Bruce. “The Betz Mystery Sphere.” The Iron Skeptic,

[9] “Betz Sphere – A Space Age Artifact?” The Fortean, 17 Feb. 2018,

[10] Kiger, Patrick J. “The Enduring Mystery of the Betz Sphere.” HowStuffWorks, 1 Feb. 2019,

Are the UFOs the US Admitted to Shooting Down Actually Aliens?

In 2020, the United States Department of Defense released three videos that appeared to show unidentified flying objects (UFOs) captured by US Navy pilots [1]. The videos, which had been previously leaked, were confirmed as authentic by the Pentagon. Since then, many have questioned whether these UFOs are evidence of alien life. This article will explore the possibility that the UFOs the US recently admitted to shooting down are actually aliens.

Section 1: The Evidence

The three videos released by the Pentagon, known as FLIR, Gimbal, and GoFast, show objects that move in ways that seem to defy the laws of physics [1]. In the Gimbal video, for example, the object appears to be rotating on its axis while maintaining forward momentum. In the GoFast video, the object is seen moving at an incredibly high speed, while in the FLIR video, the object appears to be moving in a way that suggests it is able to manipulate its environment.

In addition to these videos, there have been numerous reports of UFO sightings from military personnel and civilians alike. The National UFO Reporting Center receives hundreds of reports each month from across the United States. While the vast majority of these sightings can be attributed to natural phenomena or aircraft, some remain unexplained [2].

Section 2: The Explanations

While the evidence for the existence of UFOs is compelling, there are many possible explanations for what these objects could be. Some suggest that they are advanced military aircraft being tested by the US government. Others argue that they are natural phenomena, such as ball lightning or meteorites. Still, others believe that they are extraterrestrial in origin.

One theory is that the UFOs are the result of secret military technology being developed by the US government. This explanation is supported by the fact that many of the reported sightings occur near military bases or testing facilities. However, if the UFOs were the result of secret military technology, it is unclear why the government would release the videos to the public [3].

Another theory is that the UFOs are natural phenomena, such as ball lightning or meteorites. While these explanations could account for some UFO sightings, they do not explain the advanced technology that appears to be on display in the videos. Additionally, many of the reported sightings involve multiple objects moving in a coordinated manner, which is not consistent with natural phenomena [4].

Section 3: The Alien Hypothesis

The most intriguing explanation for the UFOs is that they are evidence of alien life. While this explanation is often dismissed as science fiction, there are some compelling arguments in its favor.

One argument is that the vastness of the universe makes it statistically likely that there is other intelligent life out there. According to the Drake Equation, which estimates the number of civilizations in the galaxy that are capable of communicating with us, there could be as many as 10,000 civilizations in the Milky Way alone [5]. Given the number of stars in the observable universe, it seems unlikely that Earth is the only planet with intelligent life.

Another argument in favor of the alien hypothesis is the advanced technology displayed by the UFOs. The movements of the objects in the videos suggest a level of technology far beyond anything currently known to exist on Earth. While it is possible that these objects are the result of secret military technology, it seems unlikely that such technology would be kept secret for long, given the intense scrutiny of the military by the public and the media [6].

Finally, there is the question of motive. If the UFOs are the result of secret military technology, it is unclear why the government would release the videos to the public. If, however, the UFOs are evidence of alien life, the release of the videos could be seen as a way to prepare the public for the possibility of contact with extraterrestrial civilizations.


In conclusion, while there are many possible explanations for the UFO sightings, the possibility that they are evidence of alien life cannot be dismissed. The advanced technology displayed by the objects, coupled with the statistical likelihood of the existence of other intelligent life, suggests that we may be on the verge of a major breakthrough in our understanding of the universe. As we continue to investigate and analyze the evidence, it is important to keep an open mind and consider all possible explanations for the phenomena we observe. Only by doing so can we hope to uncover the truth behind the mystery of the UFOs.


  1. New York Times. (2020, April 28). “Pentagon Releases U.F.O. Videos Filmed by U.S. Navy Pilots.”
  2. National UFO Reporting Center.
  3. Business Insider. (2020, May 4). “What we know about the mysterious, unexplained sightings of UFOs that US officials are now openly acknowledging.”
  4. Scientific American. (2017, June 12). “The Pentagon’s Secret Search for UFOs.”
  5. SETI Institute.
  6. Scientific American. (2020, August 25). “UFOs: What We Know and Don’t Know.”

Exploring the Myth of Underground Civilizations: Separating Fact from Fiction

The idea of people living secretly beneath the earth has captured the imaginations of humans for centuries. From ancient legends to modern science fiction, stories of underground civilizations have been a popular topic. However, is there any truth to these tales, or are they merely fanciful imaginings? In this article, we will explore the idea of people living secretly beneath the earth and examine the evidence for and against its existence.

History of Underground Civilizations

The concept of underground civilizations dates back to ancient times. In Greek mythology, the god Hades ruled over the underworld, a place beneath the earth where the dead resided (1). The ancient Indian epic, the Ramayana, describes a subterranean city called Patala, ruled by a demon king named Bali. In China, there are stories of the underworld kingdom of Diyu, where the souls of the dead were judged and punished (2).

In more modern times, the idea of underground civilizations has been a popular topic in science fiction. Jules Verne’s 1864 novel “Journey to the Center of the Earth” tells the story of a group of explorers who discover a vast subterranean world inhabited by prehistoric creatures and ancient civilizations (3). In H.G. Wells’ 1895 novel “The Time Machine,” the protagonist travels into the distant future and discovers that humans have evolved into two distinct species, one of which lives underground (4).

Evidence for Underground Civilizations

While the idea of underground civilizations may seem far-fetched, there are some who believe that there is evidence to support its existence. One of the most commonly cited pieces of evidence is the network of tunnels and caves that exist beneath the earth’s surface. These tunnels and caves have been used by humans for thousands of years for various purposes, such as shelter, storage, and transportation (5).

There are also reports of mysterious underground cities and tunnels that have been discovered around the world. In Turkey, the ancient city of Derinkuyu is a vast underground complex that was carved out of the rock by unknown people thousands of years ago. It contains multiple levels, including living quarters, stables, and a church (6). Similarly, in Mexico, the Mayan city of Cenote Yucatan was discovered in the early 20th century. It is a vast underground city that includes a network of canals and waterways (7).

There are also legends and stories from around the world that describe underground civilizations. In Scotland, for example, there is a legend of the “fairy folk,” who are said to live in a network of caves and tunnels beneath the earth (8). In India, there are stories of the Nagas, a race of serpent people who live in underground cities (9). And in South America, there are legends of the “Chachapoyas,” a race of tall, fair-skinned people who are said to have lived in underground cities (10).

Evidence Against Underground Civilizations

Despite the many stories and legends about underground civilizations, there is little concrete evidence to support their existence. Many of the stories are based on hearsay, rumors, and legends, with little actual proof. While there are certainly tunnels and caves beneath the earth’s surface, there is no evidence that these are connected to underground civilizations.

Furthermore, the idea of an underground civilization is difficult to reconcile with what we know about the conditions necessary for human life. Humans require air, water, and food to survive, and it is unclear how these necessities could be obtained in an underground environment. Additionally, the lack of sunlight would make it difficult for plants to grow, further complicating the issue of obtaining food.


In conclusion, while the idea of underground civilizations may seem intriguing, there is little concrete evidence to support their existence. While there are certainly tunnels and caves beneath the earth’s surface, there is no concrete evidence to suggest that they are connected to underground civilizations. Furthermore, the idea of an underground civilization is difficult to reconcile with what we know about the conditions necessary for human life. Humans require air, water, and food to survive, and it is unclear how these necessities could be obtained in an underground environment. Therefore, it is more likely that stories of underground civilizations are simply legends and myths, rather than based in reality.

Source List:

  1. “Hades.”,
  2. “The Underworld in Chinese Mythology.” Ancient Origins, 4 May 2015,
  3. Verne, Jules. “Journey to the Center of the Earth.” Project Gutenberg, 1864,
  4. Wells, H.G. “The Time Machine.” Project Gutenberg, 1895,
  5. “Subterranean Tunnels and Caves: A Tour of the World’s Most Amazing Underground Structures.” History Collection, 12 July 2019,
  6. “Derinkuyu: The Underground City of Cappadocia.” Atlas Obscura,
  7. “The Lost Mayan City of Cenote Yucatan.” National Geographic, 1 May 2019,
  8. “The Fairy Folk of Scotland.” Historic UK, 26 Oct. 2016,
  9. “The Naga.” Myths Encyclopedia,
  10. “Chachapoyas: The Mysterious Cloud Warriors of Peru.” Live Science, 13 Oct. 2017,