A collection of 20th-century automata, penny arcade games, and musical contraptions.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A monument to the art of slicing people open.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This recently restored timepiece has stood all around Kansas City.

Community bookshelf of 25-foot-tall book spines.

This abandoned prison castle has become an imposing gallery of graffiti art.

A museum celebrating the Victorian obsession with hair art.

The man who was president for only one day and spent most of it asleep.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

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

This historic cliffside mansion uses a natural cave for air conditioning.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

Even with its slightly risible name this colossal cross is still able to inspire awe.

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

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.