A turqoise shack off the side of the road housing "100,000 things you don't need," as their sign out front says; it's filled to the brim with an expansive collection of costume jewelry, activist pins, old postcards, expensive collector's paintings, and so, so much more.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

A gathering of green robots at the Googleplex.

The Internet Age began with a transmission from this biker bar.

This sculpture was made out of recycled guns that were turned in to the city.

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.

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

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

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

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

Once the largest windmill outside of Holland, with enormous 114 foot sails.

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

An overlooked and unassuming engineering marvel.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This redwood is a historic landmark, a town’s namesake, and the dancing sideline symbol of Stanford University.

The model behind the iconic 3D test model.

An extensive collection of ancient Egyptian artifacts and mummies.

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

A controversial memorial at the place where Captain Cook met his violent end.

In 2018, Pohoiki Road was severed by lava flowing from the eruption of Kilauea.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

An essential stop before plundering, BYO Cutlass.