An unassuming grey box sitting on San Francisco's Pier 17 is a "sky diary" of the coastal city's temperamental weather.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

Floating man-made island and upscale restaurant.

An invitation-only museum of items natural and bizarre, arcane and exotic.

This shop specializes in oddities and Victorian-inspired wonders.

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

This antique shop specializes in the history of print and design.

A former hardware store near Yerba Buena is the official home of California's history.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

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

A library and museum dedicated to typography.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

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

A temple devoted to inner esoteric mysteries located in a California commercial strip.

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

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A Bicycle Path in the Sky.

Nuclear waste dump site now an environmental sanctuary.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

Secret US military film studio in the Hollywood Hills.

Legendary prop shop filled with one man's collection of scientific curiosities.

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

Gorgeous purple flowers drape from the world's largest blossoming plant.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'