A one-of-a-kind collection of a unique medium.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A swing to dangle you off the very edge.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

An endless sea of white conical domes.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Artfully arranged bones of 5,800 Austrians.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

This classic restaurant features a gorgeous mirror-clad room.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

The angel of death appears to weep black tears at this grave marker.

The best-preserved Roman small town in North Africa.

The liveliest ghost town in the state.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

A Romanesque tower appears when water levels drop.

Bell tower juts out from a village buried under a lake.

Stalin's march toward a more modern USSR flooded a monastery, leaving a unique and extravagant nautical marker, "The Flooded Belfry."

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Former farm staffed by mental patients is now a public park.