Here's an impressive model made by Craig Calvert of Australia. The model is a result of two of his interests - Sherlock Holmes, and 1/6th scale figures. In case anyone isn't familiar with 1/6, it's the scale of Barbie dolls and the old G.I. Joe dolls (for reference, most doll houses are in the smaller 1/12th scale). Check out Craig's site, and also see the Work In Progress page if you want to see how the model was built. Great job Craig.
Some readers may know that Mr. Holmes was an injector of cocaine (a seven percent solution). Watson strongly discouraged its use, but Holmes needed it as protection from boredom, when there were no active cases.