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

Guns that have been defending San Francisco since 1904.

The rusting remains of the largest assembled WWII fleet on the West Coast.

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

This infamous prison has a store where you can buy goods crafted by incarcerated people.

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

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

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

Only hotel where you can legally launder money.

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

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

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

A man-made island in scenic San Francisco Bay.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

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

An vast warehouse of everyday treasures in Berkeley, CA.

A storybook European village in Berkeley.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Antiques by the Bay.

Radioactivity still cause for concern at this urban explorer's paradise.