San Francisco Bay's ghost town.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

An extensive collection of ancient Egyptian artifacts and mummies.

It is locally loved and ridiculed for literally looking like poop.

The rest of him lived another 61 years and was buried elsewhere.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

These subterranean storage areas hold emergency water reserves.

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

A man-made island in scenic San Francisco Bay.

The miraculous hydrant that saved the Mission District in 1906.

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

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

Half of a house.

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

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

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

Golden Gate Park's historic collection of plants.

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.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

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

A monument to the love people have for their pets.