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

A sprawling collection of over 106,000 toys from around the world.

An extensive collection of ancient Egyptian artifacts and mummies.

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

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

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

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

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

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

Beautiful steampunk ghosts of early Massachusetts.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Impossibly life-like natural history models created out of glass by a father and son.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Odd outsider art installations surround a Gold Rush-era ghost town.

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

"Only the devil could play golf here."

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

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Furniture tries to escape an abandoned building in San Francisco.