This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A collection of colorful dinosaurs hidden in an actual rainforest.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This massive redwood tree has a hole in the base big enough to drive through.

A trash dump made beautiful by nature's power.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

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

An abandoned convention space that has been left to the homeless and the radical.

The newsstand that never closes its doors—well, almost never.

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

Playable, historic pinball machines fill this Alameda museum.

Concrete strongholds stand guard over the Golden Gate.

A walk-in working camera obscura produces 360-degree live images of the San Francisco 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 winding path built in secret on the edge of the continent.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.