An elevator into the Baltic Sea.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

This massive subterranean fissure is known as the "underground Grand Canyon."

The angel of death appears to weep black tears at this grave marker.

This lava formation earned its whimsical name from the log-like formation of it stones.

Antarctica's only sculpture garden, it has art and penguins, but no plants in sight.

These etchings reveal the history of a long-gone quarantine site.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

This museum glorifies the humble potato.

More than 5,000 contemporary and "historic" mustards from around the world.

World's first "penitentiary," meant to be humane, drove men insane.

This lush Florida island is home to the ruins of a crooked ship breaker's tiny empire.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

Where beautiful signs live on forever.

Deep scars on the earth left by the Ice Age.

A mysterious pre-Incan ruin believed to have miraculous healing powers.

This locally-famous crevasse in New York State is icy all year round.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.