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

This turn of the century masterpiece has a mysterious goaty interloper.

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

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

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

An essential stop before plundering, BYO Cutlass.

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

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

San Francisco's newly reopened hands-on science museum.

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

Furniture tries to escape an abandoned building in San Francisco.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

A former suicide bridge is now accumulating symbols of love instead of a body count.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.