This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Follow the steps, and this roadside artwork will teach you how to dance.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A man's home is his castle.

An underground magnet for ever-changing street art.

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

This quirky curiosity shop takes its cues from the world's bazaars.

A bizarre roadside attraction and the first instance of miniature golf in the world.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Tour the sci-fi-esque reality of governmental disease management.