One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

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

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

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

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

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

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

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

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Its buzzing collection honors vibrator history.

A hotel and restaurant serving as the mecca of kitsch.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A trash dump made beautiful by nature's power.

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

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

A huge musical instrument played by the ocean.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Junkbots and mud babies are the masterpieces in this fantastically sci-fi art museum.