Golden Gate Park's historic collection of plants.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

One of few lasting examples of the brief octagon craze that developed into folly.

Nine Gardens in one—with tea service.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

An enormous illuminated figure dances on the Las Vegas strip.

Deco Modern sculptures of the people of the Pacific, cast for the 1939 Golden Gate International Exposition.

Dive bar built out of the remains of a whaling ship.

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

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

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

A modest reminder of treacherous waters at the Golden Gate.

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

A stellar example of Art & Crafts architecture, and a movie set to boot.

Sports history, made in the Arroyo Seco.

This former textile district now is now a thriving center for contemporary Chinese art.

The home of a neoclassical master is now a shrine to his chosen art style.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.