The ghost town that ended up on Ebay.

A ghost town at the airport is now a refuge for blue butterflies.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Historic funicular railway, believed to be the shortest railroad in the world.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Quite simply the largest tree in the world (by volume).

San Francisco's newly reopened hands-on science museum.

A hotel and restaurant serving as the mecca of kitsch.

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

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

Its buzzing collection honors vibrator history.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

The ghostly remains of an accidental sea.

America's most famous piece of self-built architecture.

Water of undetermined depth has attracted rare fish and cult leaders alike.

Marta Becket's hand-painted theater in the desert.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The rocks in this arid basin leave trails of movement behind them.

A lawless town deep in Death Valley was famous for its riches and death rate turned YouTube famous.

The easternmost town in Alaska can only be accessed from Canada.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

'Cause the fence start shaking, the earth was quaking.

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