1

There's an unexplained billion-year gap

Look closely at the canyon walls, and you'll notice something strange: a clean, sharp line where ancient rock simply stops, and a much younger layer begins directly above it.

This geological puzzle is called the "Great Unconformity," and it represents over a billion years of rock layers that are simply absent , as though that stretch of time never happened. In some spots, rock dated 1.8 billion years old sits directly beneath rock that is only 520 million years old. Where did the missing billion years go?

The leading theory involves the violent breakup of an ancient supercontinent, but scientists are still piecing it together.

2

During the Cold War, it hid a nuclear fallout shelter

During the Cuban Missile Crisis in 1962, the U.S. government converted part of the Grand Canyon Caverns into a fallout shelter. This dry cave system, more than 200 feet underground, was stocked with enough food and water to sustain 2,000 people. Naturally, it was never occupied, and the supplies were never used.

The caverns have since been transformed into a tourist attraction, with organized tours winding through the same underground chambers that were once intended as a refuge from nuclear war. You can even book a night's stay there.

3

The Federal Aviation Administration was founded after a crash over the canyon

In 1956, two commercial passenger planes collided in midair over the eastern Grand Canyon, killing all 128 people on board both crafts. Rescue teams struggled to reach the wreckage deep inside the canyon, and the extreme heat of the crash had caused the planes' aluminum to fuse with the bedrock. There were no survivors.

The disaster exposed a terrifying truth: the U.S. air traffic control system was dangerously outdated, relying on pilots' visual estimates and rough guesswork from controllers , with no way to separate fast-moving aircraft from slow ones, or instrument-flying planes from those navigating by sight. Congress responded by passing legislation that created both the Federal Aviation Administration (FAA) and the National Transportation Safety Board.

4

A hoax suggested that an Egyptian civilization had lived there

In 1909, the Arizona Gazette reported that an explorer named G. E. Kinkaid had discovered a vast underground citadel inside the canyon, filled with artifacts linked to ancient Egyptian civilization. He even claimed the expedition had been funded by the Smithsonian.

This story described hieroglyphics on the walls, mummies in the chambers, and relics pointing to a direct connection with the Egypt of the pharaohs. It was incredibly detailed, and it was, of course, a hoax. No evidence for any of Kinkaid's claims ever surfaced.

5

Fewer than 100 people have ever hiked its full length

Among the few people who have completed the through-hike of the Grand Canyon is Jen Hogan, the first woman to accomplish it, finishing her journey in 2021–2022.

It’s a full 800-mile length below the rim. The route involves extreme heat, flash floods, near-impassable areas, and stretches with no water or trail whatsoever. Around 60 or 70 people have reportedly accomplished it. This makes it one of the most exclusive feats on Earth.

6

The Grand Canyon's rocks predate dinosaurs entirely

Visitors scanning the canyon walls for fossils are often surprised to learn they won't find any dinosaur bones here. The rock layers of the Grand Canyon are simply older than dinosaurs. This fact alone can be shocking: staring at its walls means staring at marine fossils from as far back as 1.2 billion years ago. Some of its caves hold the remains of ancient mammals. The canyon is a window into a world that existed long before the dinosaurs, when the land that is now Arizona lay beneath a shallow sea.

7

The park is bigger than Rhode Island

Numbers alone rarely capture the Grand Canyon's scale, so here's a different approach. Rhode Island covers about 1,214 square miles, and the Grand Canyon National Park spans 1,904 square miles.

The canyon's depth exceeds four Empire State Buildings (which is 1,454 feet) stacked on top of one another. That’s 6,093 feet at its deepest point.

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But it's not the deepest canyon on Earth

For all its grandeur, the Grand Canyon does not hold the depth record. Pictured above, the Yarlung Tsangpo Grand Canyon in Tibet, China, plunges to 17,567 feet, which is nearly three times deeper. Carved by the Yarlung Tsangpo River as it cuts through the eastern Himalayas, that canyon is so remote and extreme that it remained largely uncharted until the late 20th century.

9

It is home to a pink rattlesnake found nowhere else on Earth

The Grand Canyon Pink Rattlesnake has a pinkish-red coloring that matches the canyon's own distinctive rock walls so closely that it's nearly invisible. It is found nowhere else in the world. Officially classified as Crotalus oreganus abyssus , it has darker diamond-shaped markings along its back that deepen the camouflage further.

10

There's a village at the bottom: Supai Village

For over 1,000 years, the remote village of Supai has been home to the Havasupai Tribe, the People of the Blue-Green Waters. It is located an eight-mile hike from the rim, but sits roughly 3,000 feet deep inside the Grand Canyon.

The U.S. Department of Agriculture has called it the most remote community in the contiguous United States, and it has no automobiles and no road access. The only ways in are on foot, by mule, or by helicopter. It is also the only place in the United States where the postal service still delivers mail by mule train.

1

Bigfoot

Image: Jon Sailer

Legend and cultural icon, Bigfoot— also known as Sasquatch— has fueled our imaginations since at least the mid-20th century. This mythical creature, which appears in both American and Canadian folklore, is believed to inhabit the forests of the Pacific Northwest.

Its origin is not entirely clear, but it likely stems from a blend of stories brought by European immigrants and tales from North American indigenous cultures. Many people throughout history claim to have seen Bigfoot and describe it as a 6- to 9-foot, half-human, half-ape creature covered in dark hair. Others have only found its large 24-inch footprints, which has certainly helped keep the legend alive.

2

Pukwudgie

Image: Johannes Plenio

Pukwudgies are mythical creatures from Native American folklore, more precisely from the New England region. They are described as small, humanoid beings, about 2 to 3 feet tall, with grayish skin, pointed ears, and spines on their back.

According to Wampanoag legends, Pukwudgies are considered guardians of the forest. They are mischievous creatures with the ability to disappear and move swiftly through the forest. In addition, they are known to cast spells and curses on those who offend them or cross their path. So now you know, if you ever travel to these lands, remember to be respectful and honor nature to avoid being punished by these protective little monsters.

3

The Jersey Devil

Image: Belinda Fewings

There are not as many sightings of the Jersey Devil as there are of other creatures on this list. However, some people claim to have found traces of claw prints made by a two-legged creature. The few eyewitnesses who were able to catch a glimpse describe the Jersey Devil as a bizarre assortment of different animal parts, resembling everything from kangaroos and dogs to horses and even reptiles.

This creature theoretically inhabits an area in South Jersey known as the Pine Barrens. It is linked to a local legend from 1735, which claims that a woman nicknamed Mother Leeds allegedly cursed her thirteenth unborn child. The baby eventually became a demon who murdered the entire family and fled to the woods to steal livestock and terrify unwary travelers to the end of times.

4

Urayuli

Image: osensei

Very similar to Bigfoot, the Urayuli, or "hairy men," are a mythical race of creatures that live in the woodlands of southwestern Alaska, near Lake Iliamna. Those who claim to have seen the Urayuli describe them as being 10 feet tall, with shaggy hair, luminescent eyes, and long arms stretching down to their ankles.

According to lore, the Urayuli are said to be transformed children who got lost in the forest, therefore they are considered peaceful creatures. Taking this into consideration, it is very likely that this legend was born as a cautionary tale to prevent children from wandering out alone at night.

5

Wendigo

Image: DGSstudios

One of the most terrifying creatures in Native American mythology is the Wendigo. According to legends originating in Algonquian folklore, the Wendigo is an evil spirit that feeds on human flesh. This creature is believed to have the ability to possess people, turning them into starving monsters who cannot help but devour other humans.

The Wendigo has been depicted in various forms throughout history but is generally described as a slender, skeletal giant with glowing eyes and sharp fangs. This malevolent, cannibalistic, and supernatural being is usually associated with cold winters, as well as with greed and gluttony.

6

Wampus Cat

Image: Peter .

The Wampus cat is usually described as a fierce, bipedal creature with a humanoid body and a feline head. This spectral, panther-sized beast has been reported across the American Southeast for centuries, with numerous legends about its origins varying by region.

One of the most famous stories has its roots in Alabama and comes from a Native American tradition. According to this story, a Cherokee woman disguised herself in the skin of a mountain lion to secretly follow her husband on a hunting trip. When the men gathered around the fire to share stories forbidden to women discovered her, they cursed her to spend eternity as a half-woman, half-mountain lion.

7

Florida Skunk Ape

Image: RyanMcGuire

Florida, the Sunshine State, has its own version of Bigfoot: the Skunk Ape. This creature is said to resemble an orangutan more than the gorilla-like Sasquatch. This particular being got its name for the pungent odor that announces its presence and was seen many times lurking around the Florida swampland during the 1960s and 1970s.

Sightings were so common during that time that, in 1977, the state legislature had to introduce a bill to protect the elusive man-ape. Although the bill was never passed and Florida wildlife officials deny the existence of the Skunk Ape, many people continue to report sightings of the black, hairy creature to this day.

8

Champ

Image: GregMontani

If you thought Scotland had the only lake monster, you haven't met Champ yet. Lake Champlain, a freshwater lake in New York, is said to be home to America's most famous lake monster. Since the early 19th century, there have been accounts of Europeans claiming to have seen a seahorse-headed creature emerging from the water. However, the local Native Americans, the Abenaki, and the Iroquois, had stories of a horned serpent called Tatoskok dating back much earlier.

Over the years this beast has manifested itself to numerous people. In fact, in 1977, a woman named Sandra Mansi claimed to have taken a photo showing a creature with a small head and a long neck, which—let's be honest—looks suspiciously similar to the Loch Ness Monster.

9

Menehune

Image: Timothy Dykes

The Menehune are a mythological race of little people in Hawaiian tradition that only appear at night. For the most part, these two-foot-tall creatures are harmless, although they can become angry if disturbed. It is believed that these supernatural beings may have originated from ancient ancestors who populated the Pacific region, eventually evolving into folklore.

The Menehune are said to be builders, gifted with great strength and architectural skill. They construct stone structures such as dams, roads, and sacred worship sites known as heiau . They work when nobody is watching, so beware—never interrupt them, or they will vanish.

10

Beast of Busco

Image: Pascal Mauerhofer

In this article, we have explored a wide array of mythological creatures resembling apes, cats, birds, serpents, and even humanoids. However, you probably won't guess what kind of creature the Beast of Busco is. In 1898 a farmer from Churubusco, Northern Indiana, claimed to have spotted an enormous turtle in Fulk Lake.

His story was corroborated fifty years later by two fishermen who reported seeing a giant turtle weighing at least five hundred pounds and with a shell as big as the roof of a car. Such was the commotion that the lake’s owner at the time went so far as to drain it in order to catch the creature, which proved to be impossible. Since then, every June, the town of Churubusco celebrates Turtle Days festival, which includes a carnival, a parade, and—wait for it—turtle races.

1

Clue #1

Image: Hybrid Storytellers

A nationwide ban on alcohol gave rise to speakeasies and bootlegging . Dance halls were alive with new rhythms, and women in shorter skirts shocked traditional society. Cities buzzed with fresh art, literature, and music. Affordable cars began filling the streets, changing how people lived and traveled.

2

Clue #2

Image: Tim Mossholder

The sound of distorted guitars and flannel shirts became the uniform of youth culture. At the same time, toy shops were filled with collectible plush animals and tiny digital pets. Computers were shrinking, and the world was just learning what "online" really meant. Sitcoms about groups of friends or quirky families topped the TV charts, while early cell phones were starting to appear in everyday life.

3

Clue #3

Image: Dominik Mecko

This period glittered with light-up dance floors and pulsing rhythms. Movie theaters drew crowds to see epic space battles and summer blockbusters . Fads like mood rings and quirky pet rocks had their moment in the spotlight. On the flip side, fuel shortages tested patience, and quick-service burger joints began appearing on more street corners.

4

Clue #4

Image: Cesira Alvarado

Families grew larger, and shiny new suburbs began to sprawl outside cities. Teenagers tuned in to a fresh sound that worried parents but captivated youth. Cars rolled into drive-ins for movies or burgers, while living rooms glowed with the latest entertainment gadget: the television set.

5

Clue #5

Image: Mitchell Orr

Television expanded with channels devoted to sports and 24-hour news. Music fans were glued to screens watching flashy new music videos . Young professionals embraced big paychecks, bold fashion, and an appetite for luxury. Arcades buzzed with electronic sounds, and living rooms welcomed the first home gaming systems.

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Answer #1: The 1920s

Image: Marvin Meyer

Known as the Roaring Twenties, this decade was defined by Prohibition, flappers, and the Harlem Renaissance . Jazz poured out of clubs, while the Model T made road trips possible for everyday families. It was a time of innovation, rebellion, and cultural change.

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Answer #2: The 1990s

Image: Dasha Zhytanska

The internet emerged, fueling the dot-com boom. Grunge bands from Seattle reshaped the music scene, while sitcoms like Friends and Seinfeld ruled TV. Kids collected Beanie Babies and fed Tamagotchis, while cell phones gradually became a part of daily life.

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Answer #3: The 1970s

Image: Matthew LeJune

Disco fever ruled the nightclubs, and blockbusters like Star Wars rewrote movie history. Quirky fads, such as Pet Rocks, had short but memorable lifespans. Rising gas prices caused long lines at fuel stations, while fast food giants spread across the country.

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Answer #4: The 1950s

Image: Elizabeth Smith

Suburbs such as Levittown expanded rapidly as families grew during the Baby Boom. Rock ‘n’ roll stars like Elvis lit up radios . TV ownership soared, transforming family routines, while drive-ins and diners became favorite hangouts for teenagers.

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Answer #5: The 1980s

Image: National Cancer Institute

The launch of MTV sparked the music video explosion , while arcades buzzed with hits like Pac-Man and Donkey Kong . Yuppies pursued ambitious careers and embraced neon fashion. Cable television expanded viewing options, and home consoles like the Nintendo Entertainment System brought gaming into millions of households.