A fleet of automotive automatons sleep in this otherwise unremarkable urban garage.

From the Difference Engine to the Cray-1, all under one roof.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

This remarkably simple jail went over a century without an escape.

Haunting and beautiful trees, doomed to die.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

A classically inspired temple in Redwood City.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.