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

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

Standing in for the first ship to navigate the Northwest Passage.

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.”

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

The original place where water met land in the City by the Bay is outlined in brass.

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

A modern frieze of ancient Grecian mythological figures playing a national pastime.

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

Furniture tries to escape an abandoned building in San Francisco.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

This contorting sculpture is the tallest in San Francisco.

The remains of a ruined mansion memorialize the 1906 earthquake.

A monumental cross hides in the trees in Golden Gate Park.

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

Once the site of speeding horses, now home to picnickers and public concerts.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

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

A hidden subterranean installation offers a view of the sky.

Art from the latest counter-culture; kids who dye their hair blue and believe the future will be a post-apocalyptic water world.

This 19th-century church is now a popular roller rink.

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.

San Francisco's first World's Fair, dedicated to the wonders of California.