An underwater city for the dead.

Olfactory delights in San Francisco's Botanical Gardens.

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

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

A library of rare occult books in Los Angeles.

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

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

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

The only rotating bar in New Orleans has been slowly spinning since 1949.

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.

An emporium for the weird, creepy, rare, and just plain gross.

A lush green oasis in the middle of Chicago.

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Stroll through a wonderland of stupendous moss-covered trees.

Continuing the tradition of the dime museum in style.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Enormous lake at the bottom of a unique cave system.

Shop selling 500 flavors of soda has something for everyone.

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

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.