The peaceful gravesite of a rugged wild west gunman echoes the touching story of his last days.

San Francisco's newly reopened hands-on science museum.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

An unassuming grey box sitting on San Francisco's Pier 17 is a "sky diary" of the coastal city's temperamental weather.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A winding path built in secret on the edge of the continent.

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

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

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

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

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

This shop specializes in oddities and Victorian-inspired wonders.

An overlooked and unassuming engineering marvel.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

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

A creepy steel gremlin has protected the Bay Bridge since 1989.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

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

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

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.