An urban forest overtakes what was the greatest failure of utopic urban housing.

A museum celebrating the Victorian obsession with hair art.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

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

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

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

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

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

A kitschy, creepy St. Louis mainstay.

A big museum full of little worlds.

A subterranean haunt where wine and homemade biscottis are always on the menu.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

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

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

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

Erosion and time have created a naturally-formed water park.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

Community bookshelf of 25-foot-tall book spines.

Curious cave that stays a cool 56 degrees all year long.

This mosaic-covered bar is brimming with curated curios.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

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