Rome is where the history of European architecture was written. The foundations were laid in ancient Roman times when the first attempts were made to design interiors which could be experienced as something physical. Ancient Roman architects also started to develop building types that are still valid today, thus creating the cornerstone of later Western architecture. This guide has been arranged chronologically. Every epoch is preceded by an introduction that identifies its key features. This produces a continuous, lavishly illustrated history of the architecture of Rome, indeed, the whole of the West. The book includes an alphabetical index and detailed maps, whose information does not just immediately illustrate the historical picture, but also makes it possible to choose a personal route through history. In order to clarify the historical development, the key buildings of each period and other major works are emphasised both in the text and on the maps.