A beautiful geyser under environmental threat.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Where beautiful signs live on forever.

Ride the subways of yesteryear.

A trash dump made beautiful by nature's power.

A one-of-a-kind collection of a unique medium.

The first declared National Monument in the United States.

This abandoned amusement park was built on a site with a dark history.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Where manatees are the snowbird vacationers in these balmy Florida springs.

Home to items never before seen by the public.

Rainbow-hued local gem in Venice.

Mysterious rocks that ring musically when struck.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

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

Eighteen miniature death-scene dioramas.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This shop for all your super spy needs hides an educational secret.

The site of the climactic scene from the classic horror film is now a historic landmark.