The final resting place of the Emperor of the United States and Protector of Mexico.

A vast city of the dead, where the deceased outnumber the living by more than a million.

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

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.

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

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

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

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

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

These six walrus head statues harken back to a time when this area wasn't far from the oceanfront.

The oldest alley in San Francisco is paved with a reminder of the city's original shoreline.

The largest whiskey stash on the West Coast survived the 1906 fires--but not without heroic effort.

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

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

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

A four paneled, brightly multicolored mosaic adorns the side of this popular grocery store.

Built in 1906, this unique building was the first Hindu temple in the United States.

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

One of the smallest parks in San Francisco honors the legacy of the "Mother of Civil Rights in California."

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

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Half of a house.

27-room home built with the fortune of a sugar magnate.

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