A modest reminder of treacherous waters at the Golden Gate.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

An essential stop before plundering, BYO Cutlass.

Guns that have been defending San Francisco since 1904.

San Francisco’s century-old Christmas Tree.

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

Over 315,000 preserved amphibians and reptiles in jars.

A hidden subterranean installation offers a view of the sky.

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

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

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

Perfect your fly fishing technique on their practice ponds.

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

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The ghost town that ended up on Ebay.

A music-filled, booze-soaked oasis in the desert.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."