A strange history museum, with items accumulated by a pair of globe trotting spies.

What better place to take a seat?

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

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

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

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

Bizarre Cavern.

A unique book shop with a collection of rare tomes and a nostalgia museum.

Every last book in this bookstore is signed by the author.

This 1,500-acre development hopes to be the Central Park of the South.

Like Mardi Gras, only everyone's a pirate.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

During this yearly Welsh swimming race, competitors tread through the fetid waters of a bog trench.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

One person's lost luggage is another person's treasure.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

This folk art compound was built by a fortune teller on the advice of three people from the future.

A bizarre house filled with an astounding array of collections.

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

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.