This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

This Mediterranean castle was built for a millionaire and his giant dog.

A flat slab of stone perched hundreds of feet above the Gasconade River in the northern Ozark mountains.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

This odd stone memorial remembers a loyal dog who offended the rail barons with his speed and saved his master with his pee.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.

Over 600 vacuum cleaners stack the shelves of what may be the cleanest museum in America.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

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

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

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