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

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

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

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

Over 315,000 preserved amphibians and reptiles in jars.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

A man-made island in scenic San Francisco Bay.

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

A monument to the love people have for their pets.

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

This turn of the century masterpiece has a mysterious goaty interloper.

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

Golden Gate Park's historic collection of plants.

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

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The remains of a ruined mansion memorialize the 1906 earthquake.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A 300-ship graveyard, with a few still visible at low tide.