Famous address - 221b Baker Street...

Sherlock Holmes and Doctor John H. Watson
lived at 221b Baker Street between 1881-1904, according to the stories written by Sir Arthur Conan Doyle. The house was last used as a lodging house in 1936 and the famous 1st floor study overlooking Baker Street is still faithfully maintained as it was kept in Victorian Times
Sherlock Holmes is a fictional character of the late nineteenth and early twentieth centuries, who first appeared in publication in 1887. He is the creation of Scottish-born author and physician Sir Arthur Conan Doyle. A brilliant London-based "consulting detective", Holmes is famous for his intellectual prowess, and is renowned for his skillful use of astute observation, deductive reasoning and inference to solve difficult cases.
Source: http://www.sherlock-holmes.co.uk/ and http://en.wikipedia.org/wiki/Sherlock_Holmes