Continuing the tradition of the dime museum in style.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

America's first public mental health facility.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

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

The world’s first penitentiary, meant to be humane, drove men insane.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

The angel of death appears to weep black tears at this grave marker.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

A place to eat for on-the-run agents and espionage enthusiasts.

A unique botanical garden housed in three giant geodesic domes.

Robots, lasers, and whoopee cushions, oh my!

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

A museum within a museum, devoted to history's most questionable medical devices.

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

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

A collection of 16,000 antlers crammed beautifully into a small shed.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.