Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

Abandoned Air Force base that has fallen into disrepair.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

Decommissioned experimental solar facilities that pioneered solar energy technology.

Rare collectibles from automated musical instruments to 250 unique automobiles.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

A tree bears footwear on the loneliest road in America.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

It's not your typical library, memorial, or book store.

Only intact Ichthyosaur skeleton in the United States.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Semi-recognized center of the world, with many oddities.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

The huge granite obelisk that towers over a small California town.

A house built from trash known as the poor man's Hearst Castle.

Cambria's most unique B&B features creative surroundings and fantastic food.

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

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.