Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

With the touch of a button, you can read a randomly selected short story.

Wander down a side street dedicated to one of the members of the Beat Generation.

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

These six walrus head statues harken back to a time when this area wasn't far from the oceanfront.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

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

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

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

A trash dump made beautiful by nature's power.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

A striking eight-story-high obelisk perched on a coastal California cliff.

The southernmost outpost of the Russian Empire in colonial America.

Eccentric sculptures made from repurposed materials peppers this former farm.

Celebrating the transformation of trash into objects of beauty.

A carnivorous plant paradise in a serpentine bog.

This massive redwood tree has a hole in the base big enough to drive through.

A sprawling cave network created by a lone lava tube.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The world's last remaining store of its kind.

The ruins of a failed dam that was built over land later described as a "sponge."