A walk through the historic city center, under the streets of Seattle.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

Windswept and remote, this island was once the home of a rare mammoth and today is home to a rare tree.

At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.

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

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

A second generation sun-powered marvel lights up the night.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A massive volcanic plug is now a protected area that hosts a number of bird species.

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

One of the only known surviving coconut palm trees in the entire state.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

Concrete strongholds stand guard over the Golden Gate.

A stellar example of Art & Crafts architecture, and a movie set to boot.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

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

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A fake town founded by Western movie stars is now becoming a hip desert community.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

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

The ghost town that ended up on Ebay.

Quite simply the largest tree in the world (by volume).