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

A 300-ship graveyard, with a few still visible at low tide.

Visible below the waves are memorials to the city's Gold Rush dead.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.

An essential stop before plundering, BYO Cutlass.

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

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A museum befitting the city responsible for supplying the majority of the world's LSD.

The only theatre in the world constructed specifically for sound movement.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A 140-year-old castle with underground caves hidden in San Francisco.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A psychedelic labyrinth on the San Francisco bay.

In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

This pair of centuries-old magnolia trees was once struck by a Babe Ruth home run.

An oddity shop filled with taxidermy, funerary memorabilia, and more.

The largest Jewish museum in the southeastern U.S. houses a permanent Holocaust exhibit emphasizing the strength of its survivors.

The home of a 19th-century author who brought African-American folktales to the mainstream is now Atlanta’s oldest house museum.