As anyone who is a Sherlock Holmes enthusiast will tell you, 221b Baker Street is the address in which our detective resides. The character created by Sir Arthur Conan Doyle is one of the most beloved book characters of all time. Sherlock first appeared in A Study in Scarlet in 1887. The character’s most famous Deerstalker hat and pipe, as well as his most famous phrase “Elementary, my dear Watson” were never actually in the books. Sherlock has also made his way into movies and has been portrayed by actors such as Basil Rathbone, Robert Downey Jr. and Benedict Cumberbatch (britannica.com).