This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

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

Faceless white figures loom over the city from the rooftop.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

America's oldest Italian restaurant is a San Francisco institution.

Over 315,000 preserved amphibians and reptiles in jars.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

A man-made island in scenic San Francisco Bay.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

A promotional sun clock on the site of San Francisco's great raceway.

The restored and active Victorian-era final resting place of San Francisco.

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

The miraculous hydrant that saved the Mission District in 1906.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

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

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

Early prototype for Frank Lloyd Wright's Guggenheim.

A monument to the love people have for their pets.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.