A 300-ship graveyard, with a few still visible at low tide.

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

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

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

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

A shining, cold, black organ lies in San Francisco's financial district.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

Half of a house.

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

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

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

This Japanese treats shop may have been the first business to mass-produce fortune cookies in the United States.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

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

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

Once the largest windmill outside of Holland, with enormous 114 foot sails.

This contorting sculpture is the tallest in San Francisco.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

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

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

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

Olfactory delights in San Francisco's Botanical Gardens.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

The remains of a 12th-century chapter house in Golden Gate Park.