A creepy steel gremlin has protected the Bay Bridge since 1989.

Internationally-recognized arts center housed in a century-old former military barracks.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A promotional sun clock on the site of San Francisco's great raceway.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

Deco Modern sculptures of the people of the Pacific, cast for the 1939 Golden Gate International Exposition.

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

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

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

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

A monument to the love people have for their pets.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

Over 315,000 preserved amphibians and reptiles in jars.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

The restored and active Victorian-era final resting place of San Francisco.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

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

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

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

The miraculous hydrant that saved the Mission District in 1906.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.