One of few surviving standpipe water towers in the U.S.

A floating museum that was sunk by a flood and left to rot in the tides.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

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

Symbolic attempt to overcome the issues of life.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

The small cave that housed Tennessee's "first citizen."

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

This award-winning men's bathroom was just too beautiful to not allow women to see.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

An ever-growing collection of rare and strange objects owned by local Arkansas illusionist Maxwell Blade.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

Where the author wrote her beloved "Little House" books.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

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

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

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

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

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

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

The first full-scale tunnel built in America is short but scenic.