+1 for Munich. Was there on a stag last year and it was a brilliant location. Loads to do during the hangover/mornings (Bmw welt, old Bayern Munich football stadium is 5 minutes walk from the bmw welt and €3 to gain access for a wander about the place, the Deutsches Museum was brilliant as well although the brain and stomach was starting to fail at that stage ). We stayed in a nice basic hotel right across the road from the main train station in Munich city centre. I think the whole lot including Ryanair flights for 4 days 3 nights was around €350. I was really impressed by Munich and it made for a really memorable stag.