The world's largest man-made underground caverns offer unparalleled underwater wonders.

This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

This little museum in the town where zombies were born celebrates the living dead.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Annual convention held by the largest pyrotechnic community in the world.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

A unique attraction and museum dedicated to exploring iconic roadside structures.

Curious rock formations in a tiny Kansas state park.

Hub of Scandinavian culture in a Minneapolis deli.

These curious caverns have been home to mushrooms, gangsters, and disco.

Display that gathers the basic elements of the universe in one convenient location.

A science teacher's dream.

Medical museum focused on antique anesthesiology equipment.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

An old town theater converted into a celebration of the hobo legacy.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

This zombie-themed restaurant stands out in the heart of corn country.