Local history museum with mammoth bones and an old myth about local giants

America's only nuclear missile silo open to the public.

Rippling sand dunes frozen in the Arizona rock.

Most-visited and most-photographed slot canyon in the American Southwest.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A stealthy Apache hideaway that became the haunting site of a mass grave.

The fossilized remains of ancient California redwoods.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

Ancient pueblos built into the base of a natural canyon wall.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Bits and pieces from the ill-fated Donner Party's winter cabins.

The haunting ruins of Jack London's dream house.

Nuclear waste dump site now an environmental sanctuary.

Concrete strongholds stand guard over the Golden Gate.

A living time capsule of the 1960s Richardson Bay water-front.

Internationally-recognized arts center housed in a century-old former military barracks.

Where a staggering 747 ships were constructed during World War II.

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

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

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

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

Guns that have been defending San Francisco since 1904.

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

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