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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Faceless white figures loom over the city from the rooftop.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

A man-made island in scenic San Francisco Bay.

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

Only hotel where you can legally launder money.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Recovered from the brink of extinction, at home in the Financial District.

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

A private home built to resemble the shape of a microscopic creature.

An vast warehouse of everyday treasures in Berkeley, CA.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

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

Oakland's beautiful monumental cemetery.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

An alley covered with 20 years of bubble gum.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Oldest building in California still in use.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

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