Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

The southernmost outpost of the Russian Empire in colonial America.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

The mysterious round rocks of Schooner Gulch.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

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

This massive redwood tree has a hole in the base big enough to drive through.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This rustic old building is said to be the most photographed barn in America.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

One woman's Viking Castle on Lake Tahoe.

A breathtaking 19th-century trail overlooks Lake Tahoe.

The tallest bridge in California was constructed for a project that was eventually cancelled.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

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

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

Art Deco stylings conceal the true nature of this bridge.

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

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

The capitol city's oldest existing cemetery.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.

On the summer solstice each year, shadows align with a 14,000 square foot painting to reveal a secret message.