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

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

Oakland's beautiful monumental cemetery.

A restored 1920s cascade stairway provides one of the best views of Oakland's Lake Merritt.

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

An abandoned Cold War missile radar site.

This small oasis of flora and art was created in remembrance of a local auto business owner.

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

A store that sells all manner of bones, insects, and animal curiosities.

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.

A classic advertising icon immortalized in regal bronze.

San Francisco’s condensed garden of incredible plant growth.

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

Early prototype for Frank Lloyd Wright's Guggenheim.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

Half of a house.

This sailor's boneyard was lost under a parking lot for decades before being rediscovered.

Internationally-recognized arts center housed in a century-old former military barracks.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

This small monument to the great inventor contains a time capsule and a Wi-Fi hotspot.

A living time capsule of the 1960s Richardson Bay water-front.

One of the last remaining Carpenter Gothic churches is situated on a wildflower conservatory overlooking the bay.