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

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

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

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

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

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

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

An overlooked and unassuming engineering marvel.

Golden Gate Park's historic collection of plants.

San Francisco's first World's Fair, dedicated to the wonders of California.

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

A famous alternative culture epicenter and where Joplin serenaded young hippies.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

San Francisco’s century-old Christmas Tree.

These subterranean storage areas hold emergency water reserves.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

A crumbling Beaux Arts monument to the Bay Area's age of rail.

Antiques by the Bay.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

Haunting and beautiful trees, doomed to die.

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

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.