A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

From the Difference Engine to the Cray-1, all under one roof.

Spiral labyrinth hidden in the hills above Oakland, CA.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

A psychedelic labyrinth on the San Francisco bay.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Its buzzing collection honors vibrator history.

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

This print shop boasts one of the largest pinball arcades in San Francisco.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

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

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Overflowing with shipping containers, this location has been transformed into a massive workspace for artists.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

Over a century old, this restored Victorian building is surrounded by a lush garden filled with rare palms.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

The most beautiful Taco Bell in the world even has surfboard parking.

A vast city of the dead, where the deceased outnumber the living by more than a million.

Abortion, prohibition, religion, war, and fear all play a part in the history of this idiosyncratic Pacifica castle.