A poignant memorial to a young boy whose death spurred a dramatic increase in organ donations in Italy—dubbed the "Nicholas Effect."

This California museum is home to one of the largest collections related to the 'Treasure Island' author.

The haunting ruins of Jack London's dream house.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

This abandoned boat was left in place thanks to its rotting beauty.

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

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

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

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.

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.

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

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

Perfect your fly fishing technique on their practice ponds.

Home to one of the world’s largest collections of model yachts.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

Once the site of speeding horses, now home to picnickers and public concerts.

The remains of a ruined mansion memorialize the 1906 earthquake.

A monumental cross hides in the trees in Golden Gate Park.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

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