Sherlock Holmes tour in London

[telefilo.livejournal.com]

Hey guys!

This summer I'm going to visit London for the first time ever, and I'd love to visit some places/locations connected with Sherlock Holmes.

Obviously I knows about Baker Street and the Sherlock Holmes Museums and, IDK perhaps the London Eye, but what about some less known location where have been filmed the 2009 movie or the BBC series, or the Granada one or other versions of the story? Or maybe even places quoted and appeared in the canon itself?

Do you know any cool place to visit or can provide any link with some info? 

Thanks in advice! ;D