Cologne city!!!

Well, I read your post I hope so this will be wonderful planing for you. I want to say that I feel very bad I tell you I have never visited Cologne city so, I have no idea about your tour. But I am a travel freak and traveling is my passion. So, I want to suggest you have to take your camera and enjoy photography there. I am sure a tour like my suggestion. After coming back from this trip you must share your personal experience and good memories there.