This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

An enormous natural sandstone bridge in Kentucky.

A whimsical folk art garden full of punny pieces and a diorama containing 3,500 toys.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

The world's longest known cave system.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

An abandoned town is hidden in Great Smoky Mountains National Park.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

It's a pretty creepy lock-up.

More than five miles of underground passageways.

A tourist attraction founded around a slumping cabin.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The cardinal directions, set in stone.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

This water tower has been a staple of the Rochester skyline since 1931.

Moonbows over Kentucky.

An abandoned theme park with a strange and tumultuous past.