Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

A long-vacant Scottish Rite temple in Hollywood has been converted into an art museum filled with Masonic relics.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

A museum, art project, and institution that demands we look at the world around us in a strange new way.

Junkbots and mud babies are the masterpieces in this fantastically sci-fi art museum.

A Bicycle Path in the Sky.

An alley covered with 20 years of bubble gum.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Version of the French Riviera destroyed by the sea.

A "haunted" landmark on the coast of Southern California.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

A macabre tour of Hollywood’s deadly history.

An abandoned, unfinished mansion on grounds strewn with lava rocks.