On Saturday I am going to Köln in Germany to participate to a birthday party. The road trip is not short, so we decided to stay there for a couple of days.
To tell the truth, I don't know too much about the city and I am looking for information about the nice spots and interesting places in Köln.
I suppose it should be a nice place, there are people putting the city on their wall:
Does anybody know anything about Köln?