Spiral labyrinth hidden in the hills above Oakland, CA.

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

Collective dedicated to restoring steam engines.

A temple devoted to inner esoteric mysteries located in a California commercial strip.

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

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

Four miles of pipelines form the model of still-functioning retro-tech efficiency.

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

Haunting and beautiful trees, doomed to die.

A tree grown from astronaut seeds which were exposed to cosmic rays.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

A strange house built only at night, with rumored mystic inspiration.

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

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

A museum befitting the city responsible for supplying the majority of the world's LSD.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

An ice cream parlor chain that caters to vegans and pinball fans equally.

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

The spur that wouldn’t die.