A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

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

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

"I did this all while you were watching TV."

A little slice of Florida face-in-a-hole kitsch, unexpectedly located in a small New Mexico town.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Home to the deepest rift anywhere on Earth.

Boise State's stadium was the first non-green football field in the world.

The largest outdoor art gallery in the Northwest United States.

Jail from the 19th century that was built by inmates.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

This playground sculpture of an icon from the past is dedicated to the children of the future.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

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

A classic carnival ride that was carved to be untouchable.

Cross the Continental Divide through an old railroad tunnel, and ride back to the top on a shuttle.

The mayor made the declaration in 2004.

This landmark is a central figure in the Nez Perce origin story.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

A large wind turbine installation in central Washington State is home to an extensive set of interpretive exhibits.

An outsider art duo's yard has been turned into a whimsical public gallery.