The city is the point of departure and arrival for the “architectural experience”. It is, therefore, a palpable, external fact as well as a product of the mind, an abstraction. This book attempts to recreate this trajectory and to describe this exchange between the mind and the world through the traces it has produced. Two separate moments lie at the heart of this book’s very structure and shape: one when the city is the site of an experience and of reflection and the other, when architects modify this site through a new project.