Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

A rural hall of justice holds the world's only comic book and superhero museum.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The farthest you can be in the contiguous U.S. from a McDonald's location.

One man's quest to save his town with a trail of record-breaking sculptures.

Summer in the "Turtle Racing Capital of the World" means rousing weekly reptile races.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This lab's maddening silence is good for business but bad for sanity.

A Roman-style column in Oregon hides a spiral staircase inside.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

The magic's in the hole!

A heavenly experience, right here on Terra Firma.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

An obscure waterfall that looks like something out of a fantasy novel.