One of the best historical guidebooks I've ever seen. This includes not only a complete guide to the exhibits in Cologne's Roman-Germanic Museum, but is also a companion to similar exhibits in other museums around the city as well as an excellent historical guide to the churches and the cathedral. It includes a great and detailed walk around Roman Cologne with a wealth of historical and practical information. Uniquely impressive is an appendix containing every reference to the city in Roman and mediaeval sources. The maps are wonderful. All I can think of to improve it would be a better index and perhaps a more intuitive, user-friendly layout. ( )