Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Massive still life just off the highway in Kansas.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

Another in a long tradition of legends regarding infernal seats.

Curious cave that stays a cool 56 degrees all year long.

A Mormon place of exile in Missouri.

A massive underwater sinkhole made famous by Jacques Cousteau.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

Semi-recognized center of the world, with many oddities.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

Curious rock formations in a tiny Kansas state park.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

"Only the devil could play golf here."

The most alien-looking place on Earth.