Revisiting Lisbon and the works that architect João Luís Carrilho da Graça created for the city, this book offers a certain way of looking and acting. From a series of models and plans, it reveals a strategy for analysing territory which gives meaning to the operations and forms of design. The territory of the city, recognized from the main points, and the hinge and valley lines that characterize its original topography, shows how human trajectories and settlements appropriated nature in the construction of the city and how the architectural work can be inscribed into that territorial plan. The book contains contributions by Marta Sequeira, Susana Rato, Emílio Tuñón, Diogo Seixas Lopes and photographs by Tiago Casanova.