The crumbling remains of the first Black-owned and operated hospital in Kansas City.

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

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

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

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

Dad jokes and wordplay abound in this comic fake cemetery.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Electrical pylon in the shape of Disney's beloved mouse.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.

This unique tower has been home to malaria-fighting bats for 100 years.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.