A psychedelic labyrinth on the San Francisco bay.

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

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

The world's first permanently occupied mountain-top observatory continues to report on the stars.

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

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

The oldest lawn bowling club in the United States.

This 19th-century church is now a popular roller rink.

A promotional sun clock on the site of San Francisco's great raceway.

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

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

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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

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

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

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

A crumbling Beaux Arts monument to the Bay Area's age of rail.

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

Collective dedicated to restoring steam engines.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

Dive bar built out of the remains of a whaling ship.

Spiral labyrinth hidden in the hills above Oakland, CA.

An abandoned car and strange wooden debris are among the scattered remains of the old sand and gravel quarry.