What remains of the summer palace of King Kamehameha III.

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

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

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The blinking light atop the iconic landmark has been sending secret messages for decades.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

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

A giant donut stands as a popular symbol of Los Angeles iconography.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The final resting place of a space program monolith, soon to be unveiled again to the public.

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

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This 'Murder House' grand mansion has starred in everything from Bones to Buffy.

A ghost town at the airport is now a refuge for blue butterflies.

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

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

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

A strange house built only at night, with rumored mystic inspiration.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.