The haunting ruins of Jack London's dream house.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

Guns that have been defending San Francisco since 1904.

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

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

Arlington Cemetery exhibit dedicated to death and grieving.

San Francisco Bay's ghost town.

A ruined hotel with an unlucky history and an eerie present.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

Collective dedicated to restoring steam engines.

An vast warehouse of everyday treasures in Berkeley, CA.

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

The only theatre in the world constructed specifically for sound movement.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World War II-era Nazi compound nestled in the Santa Monica hills.

A library of rare occult books in Los Angeles.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.