Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The largest permanent Monopoly board makes one of the longest games even bigger.

A 300-ship graveyard, with a few still visible at low tide.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A library of rare occult books in Los Angeles.

Towering basalt columns, a creation of fire and ice.

Its buzzing collection honors vibrator history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

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

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

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

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A psychedelic labyrinth on the San Francisco bay.

A trash dump made beautiful by nature's power.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.