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

A giant Troll lurks under one of Seattle's oldest bridges.

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

The key to turning shifting dunes into the green oasis of Golden Gate Park.

A man-made island in scenic San Francisco Bay.

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

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Floating man-made island and upscale restaurant.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Golden Gate Park's historic collection of plants.

Art in the form of a winding, man made crack in stone.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A huge musical instrument played by the ocean.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

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

This turn of the century masterpiece has a mysterious goaty interloper.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

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

An essential stop before plundering, BYO Cutlass.