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

A gathering of green robots at the Googleplex.

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

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

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

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

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