San Francisco's newly reopened hands-on science museum.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Golden Gate Park's historic collection of plants.

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

San Francisco's first World's Fair, dedicated to the wonders of California.

Over 315,000 preserved amphibians and reptiles in jars.

A century and a half of research in the sciences and natural history, still going strong.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

From the Difference Engine to the Cray-1, all under one roof.

An Aladdin's cave of old Silicon Valley tech.

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.

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

California's largest steel arch bridge.

Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

A Mysterious Masonic tomb in San Luis Obispo.

A hotel and restaurant serving as the mecca of kitsch.

A simple statue outside a California Amtrak station honors the overlooked contributions of the "silent spikes."

An alley covered with 20 years of bubble gum.

One of the last surviving buildings of a once large and thriving Chinatown.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

The world's first motel is now an administrative building for an apple farm.

A deserted hodgepodge of experimental structures designed by nearby university students.