If you're looking for an old hotel in the old part of Braunschweig, Hotel Ritter St. George might be it for you. The hotel is in an 500 year old house, with rooms and walls at odd angles. I travel often and this is probably the oldest hotel I've ever stayed at. That being said, with a hotel that old you're not going to get the kinds of amenities which you might be used to, like modern bathrooms and stand up showers. The hotel is in the old part of Braunschweig, so walking around the area is very nice. The breakfast, which was included with my room, was pretty good.