The largest of only eight working transporter bridges left in the world.

Eighteenth-century home, where Herschel discovered the planet Uranus.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This restaurant's specialty is "a major enigma for food historians."

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

Three bridges straddle a stream, one stacked upon the other.

A former coastal watch post has been turned into a bothy with unrivaled views of the sea and its inhabitants.

Believed to be the smallest castle in Europe.

This lovely Scottish nature walk leads to the source of a local legend.

The taxidermied remains of the "last wild grizzly bear in California" and of the symbol of the state of California.

America's oldest Italian restaurant is a San Francisco institution.

A man-made island in scenic San Francisco Bay.

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

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

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

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

Its buzzing collection honors vibrator history.

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

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

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 huge musical instrument played by the ocean.

A miniature train theme park, free to the public, laying at the base of the Santa Monica Mountains.

This stockpile of junked electronic and mechanical gadgets is a favorite among Hollywood prop masters.