The eighteenth century was a golden age of public building. Governments constructed theaters, museums, hospices, asylums, and marketplaces to forge a new type of city, one that is recognizably modern. Yet the dawn of this urban development remains obscure. In Architecture and Statecraft, Robin Thomas seeks to explain the origins of the modern capital by examining one of the earliest of these transformed cities. In 1737 King Charles Bourbon of Spain embarked upon the most extensive architectural and urban program of the entire century. A comprehensive study of these...