A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

Scattered around Atlanta are little doors with big charm.

This fairytale-inspired cottage was created by a university literature professor.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

An underground magnet for ever-changing street art.

"I did this all while you were watching TV."

Florida castle built with aluminum printing plates.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A tribute to Ponce de Leon's supposed quest for eternal youth.

These curious caverns have been home to mushrooms, gangsters, and disco.

Home to drunken tower-climbing goats... seriously.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Reverend Jen's unique museum/living room showcases her troll collection.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

This replica of the Greek structure is in the heart of Nashville.

This glamorous old building is said to have inspired the Tower of Terror.

A new kind of theme park for adults off the Las Vegas Strip.