This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The sign at the garden gate reads: "These Plants Can Kill."

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The largest greenhouse in the world is home to over one million types of plants.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

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