A museum, walk-through diorama, and library nestled under one castle-like roof.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

Over 12,500 words are scrawled across each room of this historic plantation house and no one knows why.

Four metal statues of massive animal penises stand outside the university's Animal Sciences building.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

The land is home to swimming ponies and a legendary 18th-century treasure.

Bizarre Cavern.

An eerie, decaying ghost town destined to fade into the forest.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.