An Art Deco gem that held together the artistic heart of an agricultural community for 92 years.

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

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

Step back in time at this 1950s display home, built to showcase once cutting-edge electric amenities.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

This otherworldly church spire reaches up toward the heavens.

Community bookshelf of 25-foot-tall book spines.

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

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

A big museum full of little worlds.

University City's quirkiest resident lives in a park named after its first.

A chessmaster's dream destination.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

Less a museum than a bizarre fantasy world created by artists and engineers.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

An abandoned factory along the Mississippi coated by a giant mural.

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

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Man-made geyser that rises to the exact height of the Gateway Arch.

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

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

Did Inca children also slide down these smooth rocky slopes above Cusco?