The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

A Bibliophile's Dream.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

A monument to the love people have for their pets.

A hidden subterranean installation offers a view of the sky.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

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

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

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

Golden Gate Park's historic collection of plants.

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

A 300-ship graveyard, with a few still visible at low tide.

Olfactory delights in San Francisco's Botanical Gardens.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

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

This print shop boasts one of the largest pinball arcades in San Francisco.

A psychedelic labyrinth on the San Francisco bay.