Visitors dip into a variety of pools of what was once ice.

Legend says this tiny ancient island is the lost ancestral homeland of the Aztecs.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

Found down a long dirt road, a sacred Mexican cenote and 18th-century hacienda remain hidden.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Less a museum than a bizarre fantasy world created by artists and engineers.

Every president in history is immortalized in bronze in downtown Rapid City.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

A cemetery housing wild west legends in South Dakota.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

Just a man taking his prehistoric pet for a stroll.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This Wyoming town is fascinated by a particular mythical creature.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

An architect's childhood fantasy treehouse made real.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.