This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

This kitschy tavern is also home to rare early editions of "Treasure Island."

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

Furniture tries to escape an abandoned building in San Francisco.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

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

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Golden Gate Park's historic collection of plants.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

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

Visible below the waves are memorials to the city's Gold Rush dead.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

San Francisco's newly reopened hands-on science museum.

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Olfactory delights in San Francisco's Botanical Gardens.

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