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

This residential door allows San Francisco muggles a glimpse at the wizarding world.

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.

Half of a house.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

A promotional sun clock on the site of San Francisco's great raceway.

Gold Rush-era tombstones line the park's paths.

Golden Gate Park's historic collection of plants.

An overlooked and unassuming engineering marvel.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

This private residence was the template for one of the most beloved television homes of all time.

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

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

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

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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Its buzzing collection honors vibrator history.

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

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

Olfactory delights in San Francisco's Botanical Gardens.

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