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

The only visible piece of San Francisco's most famous shipwreck.

Visible below the waves are memorials to the city's Gold Rush dead.

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

A huge musical instrument played by the ocean.

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

A monument to the love people have for their pets.

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

Internationally-recognized arts center housed in a century-old former military barracks.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Concrete strongholds stand guard over the Golden Gate.

A living time capsule of the 1960s Richardson Bay water-front.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.