Worshipping in the Köln cathedral was a very cool experience of which the highlight was the beautiful organ music. The atmosphere was almost magical, reverent and imposing, but it was ruined for me by the constant babble of tourists from the back of the sanctuary. They provided an incessant hum that kept strong throughout all the prayers and times of silence. It made me feel sorry for the worshippers and clergy who frequented the cathedral and had to deal with the tourists all the time. That being said, I am very glad I had the opportunity to attend a worship service in such a cool place.