A man-made island in scenic San Francisco Bay.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This private residence was the template for one of the most beloved television homes of all time.

Early prototype for Frank Lloyd Wright's Guggenheim.

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

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Half of a house.

The remains of a ruined mansion memorialize the 1906 earthquake.

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

A monument to the love people have for their pets.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A modern mechanical planetary system, part of a 10,000 year clock.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

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

An essential stop before plundering, BYO Cutlass.

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

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

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

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

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

This shop specializes in oddities and Victorian-inspired wonders.