Photos in Fog & Random Thoughts About Sherlock In London

Paul Cram in fog
Zay Cram of Little Time Off
Someone I miss a lot once told me that fog is the ideal setting for a good mystery; as it muffles sound and makes you unsure of what you are seeing in the distance. I agree with him that this must have been a reason that London was the setting for Arthur Conan Doyle to have put Sherlock.

What's your favorite Sherlock mystery?