Whenever I am in London, I make a point of stopping by 221B Baker Street, London NW1 6XE, the home of the Sherlock Holmes Museum. This has become something of a personal ritual.
The narrow Georgian house draws visitors from across the world, all eager to step into the imagined world of Arthur Conan Doyle’s detective. They queue patiently, pay an entry fee, buy books and souvenirs, and take photographs. It always strikes me that Sherlock Holmes never existed, and yet he earns Britain millions.