Every drop of D.C. tap water flows through this old waterworks.

The span is crooked and made from two older recycled bridges.

The site of the climactic scene from the classic horror film is now a historic landmark.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

One man's love of natural beauty led to the creation of this hidden granite monument.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

Ride on a fully-restored Nike nuclear-tipped missile elevator from the Cold War.

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

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

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

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

Astronomers plan to launch a space telescope into orbit, to find out what exactly stands in the way of an asteroid hitting Earth.

Concrete strongholds stand guard over the Golden Gate.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

Centuries of biking history are nestled in the shadow of the birthplace of contemporary mountain biking.

Of all the origin stories for weed's secret code, this one likely has the goods.

Frank Lloyd Wright died a year before construction on his largest public project even began.

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

A tribute to one man's legacy of improving the accordion's reputation.

This California family's ancestral melon is sold only here.

This world-class vineyard has a peculiar collection of contemporary sculptures scattered across the property.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.