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

This residential door allows San Francisco muggles a glimpse at the wizarding world.

An overlooked and unassuming engineering marvel.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

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

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

A hidden subterranean installation offers a view of the sky.

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

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

This private residence was the template for one of the most beloved television homes of all time.

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

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.

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.

In this century-old literary safehouse, print is alive and well.

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.

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

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

An essential stop before plundering, BYO Cutlass.

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

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.