Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

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

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

Like Stonehenge, but with boats and oodles more charm.

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

European castle ruins in an American state park are actually the product of death and grief.

This pristinely abandoned filling station on the edge of a graveyard is populated solely by unsettling mannequins.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Eighteen miniature death-scene dioramas.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

An abandoned warehouse turned art sanctuary in New Orleans.

After the parade, students throw their beads on the tree hoping for good luck on exams.

The crumbling remains of a 19th century fortess.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A snapshot of the city's fascinating voodoo culture.

A whimsical folk art garden full of punny pieces and a diorama containing 3,500 toys.

The world's third-largest scale model of the planets.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.