The first high-tech company in the valley that actually worked with silicon devices.

Nose around a unique collection of more than 300 natural aromas used to craft perfume fragrances.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

A vast city of the dead, where the deceased outnumber the living by more than a million.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Its buzzing collection honors vibrator history.

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

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

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

These subterranean storage areas hold emergency water reserves.

Early prototype for Frank Lloyd Wright's Guggenheim.

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

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

Golden Gate Park's historic collection of plants.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

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