This museum gives tribute to the underappreciated "Down-South Submarine."

Hidden amid the old-world charm of Savannah is a museum dedicated to the world of oddities and criminal history.

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

Divinely-inspired village houses 6,000 dolls, plus strange and lovely outsider art.

The only pachinko parlor in the United States.

This woodland architectural installation acts as a camera obscura for the heavens.

If it feels like a speakeasy, that’s because it probably was one.

Definitely not a clown bar.

One of the last remaining venues on the Old Chitlin’ Circuit is a kaleidoscopic music hall at the end of a dirt road.

A mountaintop space observatory that is certified dark.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

Follow the path behind this treat-slinging camper van to a sculpture garden in the forest.

A folk art mecca famous among outsider art fans.

Trace the history of writing at this unusual North Carolina destination.

A retired tobacco farmer's pet project turned into a sturdy miniature city.

This vast kitty-themed collection illustrates the history of human-cat interaction.

A piece of outsider public art accompanied by a strange urban legend.

A kitschy, creepy St. Louis mainstay.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

The only zoo where you can buy animals that won't need feeding.