A statue high in a hill that represents how Buffalo Bill got his name.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

This super steep hike ascends 2,000 feet in less than a mile.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

A floating museum that was sunk by a flood and left to rot in the tides.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Man-made geyser that rises to the exact height of the Gateway Arch.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

Explore the legends surrounding these mythical sea creatures inside this museum.

This park contains a number of standing stones meant to heal and inspire.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

A remarkably opulent mansion with a tragic history.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.

The largest source of fossilized insects anywhere.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.