A walk through the historic city center, under the streets of Seattle.

Berlin's old airport.

Furniture tries to escape an abandoned building in San Francisco.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Hot Doug's "Hot Dog" Stand.

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

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A classically inspired temple in Redwood City.

A hotel and restaurant serving as the mecca of kitsch.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A restaurant and observation deck built in a unique broadcasting antenna.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.