The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

A classic advertising icon immortalized in regal bronze.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

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

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

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

Art in the form of a winding, man made crack in stone.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

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

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

Radioactivity still cause for concern at this urban explorer's paradise.

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

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

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

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

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

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

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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

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

Tiki luxury on Nob Hill.

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

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.