Leaving tomorrow. Gonna stay there on Saturday night, and come back Sunday evening. Gonna make some photos, if photos are allowed in this kind of exhibition? Does anyone know that? Check out the hotel I'm gonna stay the night only the best is good enough for DC

http://excelsiorhotelernst.com/en/

My girlfriend checked some pages on the internet, and finally found the site http://de.otel.com/ where she got the room for 125€ plus breakfast, instead of the normal 200€ without breakfast (breakfast is 22€/person). It's in the very centre of Cologne, and only 3km away from the Koeln Messe where the exhibition is.