This sculpture combines the literary Alice with her real-life inspiration.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

This folk art compound was built by a fortune teller on the advice of three people from the future.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Ruins of a Carnegie family mansion on Cumberland Island.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

The beauty of urban decay, hiding some dark secrets.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

This marker identifies the location where three states converge.

A hotel with a rich Wild West history of miners and bootleggers.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

A river runs through this remote valley in a very unexpected way.

Unlike most arches, this geological oddity formed in a volcanic dike.

A fake mine that was made using real mining techniques which is also used as a community center.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

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

Possibly the world's only drive-in movie theater with an attached motel.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

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

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.