A Roman-inspired temple once controlled half of San Francisco's waters.

A museum, art project, and institution that demands we look at the world around us in a strange new way.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

The California capital city once stood 10 feet lower than it does today.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

A popular winter vacation destination for migrating monarch butterflies.

Where the writer penned his famous story about a jumping frog.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

This graveyard is the eternal home of the residents of a vanished California town.

Four hundred granite steps were built into this massive rock by the National Park Service.

Friendships have been forged over ham and eggs every Wednesday morning for nearly a century.

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

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

The longest burning light bulb in the world.

An abandoned Cold War missile radar site.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

Once the gateway to the utopian dream-village of a Civil War embalmer.

The overgrown ruins of a once thriving World War I-era copper mine.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

An L.A. traffic island where the faces of locals have been carved into massive granite eggs.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

The only visible piece of San Francisco's most famous shipwreck.