Gold Rush-era tombstones line the park's paths.

This print shop boasts one of the largest pinball arcades in San Francisco.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

A modern mechanical planetary system, part of a 10,000 year clock.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

A Roman-style column in Oregon hides a spiral staircase inside.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

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

The southernmost outpost of the Russian Empire in colonial America.

Noble beasts perhaps, but not the Emperor's dogs.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

Internationally-recognized arts center housed in a century-old former military barracks.

'Cause the fence start shaking, the earth was quaking.

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

Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

A hotel and restaurant serving as the mecca of kitsch.

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

When California condors were hovering on the brink of extinction, this recovery program was charged with helping the birds thrive again.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

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