Sherlock Holmes is probably the worlds greatest detective, famed for his powers of observation and deduction. The stories have a good rhythm, the characters of Holmes and Watson are well developed, though now appear stereotypical through their familarity.
I'm a particular fan of the Clive Merrison and Michael Williams BBC radio versions. They performed the whole canon.
In October 2004, I visited the Sherlock Holmes pub in Northumberland Street, London, which is full of Sherlockian memorabilia including a re-creation of Sherlock Holmes' sitting room. Visible features include the bust of Holmes with a gun shot, the papers on the front table are from Baskerville Hall, and some of the code from the Adventure of the Dancing Men is visible on the left.