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

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A museum dedicated to the alleged Roswell Incident.

The largest earthwork effigy in the world.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

Inside, ancient treasures. Outside, modern contradictions.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Prehistoric animals decorate this popular outdoor park.

Moonbows over Kentucky.

A curiosity-seeker's paradise set inside a three-story historic school house.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

An abandoned theme park with a strange and tumultuous past.

One of the few surviving "Wigwam"-themed motels.

The world's longest known cave system.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A local scoured more than 1,000 acres for stone to create his masterpiece.

This huge clock made of flowers and simple machinery was once used a political weapon.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

Kentucky's longest operating jail is now a spooky spot to spend the night.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.