A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The only surviving prototype for Buckminster Fuller's house of the future.

Less a museum than a bizarre fantasy world created by artists and engineers.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A museum dedicated to the history and exploration of both popular music and science fiction.

A wall of chewing gum moonlights as collective art.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

One of the best absinthe distilleries in the United States.

Antiques by the Bay.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This massive redwood tree has a hole in the base big enough to drive through.

A trash dump made beautiful by nature's power.

Concrete strongholds stand guard over the Golden Gate.

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

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

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

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

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.

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

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

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