It's Szczecin, and it's not entirely impossible to pronounce, but it does require practice. The inital szcz is pronounced about the same way as sh ch in fresh cheese.
Aaargh! I had a sinking feeling I had it wrong, should have checked the map. It's a border town between Poland and Germany, I've crossed that border quite a few times and I still can't remember the spelling... Polish is hard for foreigners!
