At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

27-room home built with the fortune of a sugar magnate.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

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

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A gathering of green robots at the Googleplex.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Furniture tries to escape an abandoned building in San Francisco.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A modest reminder of treacherous waters at the Golden Gate.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Guns that have been defending San Francisco since 1904.

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

One of few lasting examples of the brief octagon craze that developed into folly.

Inside this museum, the history of the Walt Disney Family empire is on full display.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

Gold Rush-era tombstones line the park's paths.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This private residence was the template for one of the most beloved television homes of all time.