400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

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

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

These ancient sacred grounds granted amnesty to those who managed to reach them.

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

This blowhole is supposedly caused by a trapped monster.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Decades of discarded bottle caps line this alleyway, a fixture of Texas A&M.

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

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

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This black shoreline is made up of exploded lava particles.

A controversial memorial at the place where Captain Cook met his violent end.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

Like Mardi Gras, only everyone's a pirate.

Town not known for anything except its strange name.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

A museum dedicated to the lovable crime couple Bonnie & Clyde, just a few miles away from the site of their early demise.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

Nature's biggest mammal swims in landlocked Oklahoma.

An oil baron's wild paradise and the winner of an ill-fated air race.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

These massive mitts are made of 30 tons of devotional bronze.