A gap in the concrete has been transformed into a miniature playground for the mind.

A unique piece of graffiti offers a little slice of local history and mystery.

An art collective teaching the more fiery, metal-y art forms.

A hardware store Buddha statue installed to deter vandalism wound up attracting Vietnamese immigrants who came to pray.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

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

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

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

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

Neoclassical Revival mansion and set of horror cult classic Phantasm.

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

This eatery transports diners to a place that no longer exists: East Germany.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

The longest continuously operating Elk's Lodge in the country.

San Francisco’s condensed garden of incredible plant growth.

San Francisco’s century-old Christmas Tree.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

A quiet marker in memory of local men and women lost in WWI.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

One time home to turn of the century explosives, now hidden under the Bay Bridge.

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

A quiet nook at the top of a little-known hilltop park named after California's first poet laureate.