Classical Architecture is the main character of the Western Civilization. Every year hundreds of new classical buildings are being built all over the world, dozens of new urban neighborhoods and villages all based upon the distinctive elements of Classical Architecture. Athens, Rome, Paris, London, Washington DC have been built according to the principles of Classical Architecture and Urbanism that have been capable of adapting to different places and environments thanks to the fundamental relationship between the building and the human being. This book is conceived as a tool to better understand how it is possible today to build or regenerate a city organically designed according to the principles of both Classical Architecture and the New Urbanism: from the Urban plot to the Urban neighborhood, from the city to the metropolis.