World's largest collection of serial killer artwork and other macabre exhibits.

The only theatre in the world constructed specifically for sound movement.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

Eco-friendly island mansion.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Abandoned Coast Artillery fort now serves as a graffiti canvas and sightseeing vantage point.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

Once forgotten, this strip of sand was a rare beachside haven for Black Americans in Atlantic City.

Where America's first doomsday cult awaited the end of the world.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Internationally-recognized arts center housed in a century-old former military barracks.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A huge musical instrument played by the ocean.

A modern mechanical planetary system, part of a 10,000 year clock.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

A museum befitting the city responsible for supplying the majority of the world's LSD.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A large instrument played by the wind.

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

A 140-year-old castle with underground caves hidden in San Francisco.