A man-made island in scenic San Francisco Bay.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Floating man-made island and upscale restaurant.

Recovered from the brink of extinction, at home in the Financial District.

These subterranean storage areas hold emergency water reserves.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

Furniture tries to escape an abandoned building in San Francisco.

Only hotel where you can legally launder money.

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

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

One of few lasting examples of the brief octagon craze that developed into folly.

A huge musical instrument played by the ocean.

The ghost town that ended up on Ebay.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

This giant slab of driftwood marks the beginning of the Winnemucca to the Sea Highway.

This Old West eatery along America's Loneliest Road was originally a stop on the Pony Express.

A tree bears footwear on the loneliest road in America.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Come for the speed, leave in love with the desert.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

What almost started out as a spite house became an eccentric's found object masterpiece.

Largest man-made excavation on earth!