The oldest lawn bowling club in the United States.

Only hotel where you can legally launder money.

A man-made island in scenic San Francisco Bay.

This turn of the century masterpiece has a mysterious goaty interloper.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

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

A winding path built in secret on the edge of the continent.

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

A huge musical instrument played by the ocean.

The once highest point in China blends symbolic design with a kick of adrenaline.

A colorful architectural gem in Seattle's uniquely modern Central Library.

A wall of chewing gum moonlights as collective art.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

Tiki luxury on Nob Hill.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

An artsy hidden staircase leads to breathtaking views of San Francisco.