In the city forest of Augsburg are oval, artificial ponds formed from a World War II bombing campaign.

A huge musical instrument played by the ocean.

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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Recovered from the brink of extinction, at home in the Financial District.

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

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

Faceless white figures loom over the city from the rooftop.

Tiki luxury on Nob Hill.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

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

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

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

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

Time travel with sweets across history at this research-based candy store.

Neoclassical Revival mansion and set of horror cult classic Phantasm.