Canyon walls shrouded in ferns.

The southernmost outpost of the Russian Empire in colonial America.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

This amazingly preserved Gold Rush town is a historian's dream.

This grand gothic brewery has been pumping out suds for over a hundred years.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

Haunting and beautiful trees, doomed to die.

A 300-ship graveyard, with a few still visible at low tide.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A winding path built in secret on the edge of the continent.

Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

America's only nuclear missile silo open to the public.

At this research institute, the chile is king.

This isolated island is often capped by its own fluffy cloud.

The narrow passages will challenge even the bravest driver.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

Local legend says the remains of Father Christmas lie within the medieval grounds.