I'm going to be studying from October through January at a university in the bundesland of Thüringen. It's smack dab in the middle of the country, part of former East Germany. While I do not know for sure yet in which city I will be, I'm guessing it will be Erfurt, home to the college days of Martin Luther and this:
This, of course, is to let passers-by know that fresh beer is for sale inside! It's a custom from the Middle Ages that's continued by some modern tavern owners. I think it's a tradition worth keeping :)