This guest house in Colognes old town offers non-smoking rooms with free internet It is opposite Colognes GroSs St Martin church, just a 5-minute walk from the cathedral Gir Keller Gastehaus is set in an 11th-century building together with the Gir Keller event venue, one of the citys oldest vaulted cellars The guest houses quiet rooms have bright wooden floors and are suitable for allergy sufferers The bathroom comes with free toiletries Cologne Central Station and the Philharmonie concert hall are a 5-minute walk from the Gir Keller The Koelnmesse exhibition centre is about 15 minutes away