Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.

This small monument to the great inventor contains a time capsule and a Wi-Fi hotspot.

The first U.S. town to secede from the Union, only to vote themselves right back in.

This 19th century train workshop is a treasure trove of railroad history.

The Internet Age began with a transmission from this biker bar.

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

Anyone can control this glittery light installation with just a phone call.

This 38-year old fish became a casualty of changing trends.

I Street Bridge is the heaviest swinging center bridge in the United States.

Historical trolley restoration and operation at History San Jose, Kelly Park.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

A dry lake is what remains of a community founded on a real estate scam.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

A relic from a forgotten bakery chain still spins atop a diner.

A mysterious and endangered parasitic herb from the California desert.

Over one million bird-related artifacts await.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

Famous and forgotten figures lie beneath the faded headstones and decaying planks of wood.

This historic graveyard was partially paved over to create a streetcar line.

This conservation area is also home to many of the region's desert tortoises.

At this 1940s-era neighborhood favorite, you can still drink a cherry phosphate.