One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

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

A true roadside icon standing on the same plains that the herds once roamed.

A monument to the center of the North American continent may be off by a few miles.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

The king of U.S. high points towers over every other peak on the continent.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This blowhole is supposedly caused by a trapped monster.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

What remains of the summer palace of King Kamehameha III.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Race through the maze, get your name on the sign.

This ancient Hawaiian henge may have been an early star chart.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

A haunted hill that supposedly defied gravity.

Electrical pylon in the shape of Disney's beloved mouse.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

A tribute to Ponce de Leon's supposed quest for eternal youth.