Guns that have been defending San Francisco since 1904.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A hand-built folk art installation covered with messages of God's love.

The ghostly remains of an accidental sea.

A trash dump made beautiful by nature's power.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Stroll through a wonderland of stupendous moss-covered trees.

The longest living non-clonal organisms on Earth.

Megachurch turned Catholic church comprised of 10,000 glass panes.

California's own majestic geyser is powered by a subterranean volcano.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Towering basalt columns, a creation of fire and ice.

A ghost town originally established and governed solely by Black Americans seeking a place of their own, free from discrimination.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.