Book excerpt: For Italian city builders more than a thousand years ago, the urban realm was the great theater where their best aspirations were played out, the place where society said the most substantial things about who they were and what they longed for. In this masterful blend of art and cultural history, architect David Mayernik reveals how the very different cities of Venice, Rome, Florence, Siena, and Pienza were all literally designed to be both models of the mind and images of heaven. Mayernik takes the reader on a journey into the past in Timeless Cities, but he also explains why these city-building ideas remain relevant today. For those travelling on vacation or appreciating the art and architecture of Italy from home, Mayernik helps bring the wonder and beauty of the Renaissance mind a little closer.