An invitation-only museum of items natural and bizarre, arcane and exotic.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

Furniture tries to escape an abandoned building in San Francisco.

This surreptitious shop is only open five hours per week.

A free, public museum dedicated to the fascinating science of sight.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

This 19th-century church is now a popular roller rink.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

A hidden subterranean installation offers a view of the sky.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

The remains of a ruined mansion memorialize the 1906 earthquake.

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

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

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

A modern mechanical planetary system, part of a 10,000 year clock.

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

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

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

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

A winding path built in secret on the edge of the continent.

A psychedelic labyrinth on the San Francisco bay.