Over 315,000 preserved amphibians and reptiles in jars.

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

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This sailor's boneyard was lost under a parking lot for decades before being rediscovered.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

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

A 140-year-old castle with underground caves hidden in San Francisco.

Gold Rush-era tombstones line the park's paths.

A monument to the love people have for their pets.

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

An invitation-only museum of items natural and bizarre, arcane and exotic.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

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

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

Once the gateway to the utopian dream-village of a Civil War embalmer.

A huge musical instrument played by the ocean.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

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

Where a staggering 747 ships were constructed during World War II.

Tiki luxury on Nob Hill.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.