This book explores the hypothesis that public space – if conceptualised, imagined, and shaped at the metropolitan scale, through innovative territorial design approaches – offers the possibility to interconnect and integrate various systems in search for synergic responses to emerging societal challenges that impact large, urbanised landscapes. The book offers a multidimensional and multi-geographic framework to discuss the role of public space on contemporary metropolitan territories, as part of MetroPublicNet - Building the foundations of a Metropolitan Public Space Network to support the robust, low-carbon and cohesive city: Projects, lessons, and prospects in Lisbon research project. The reader will find a critical and overarching perspective on the conceptual, methodological, and empirical lenses that unfolded throughout the research process, namely a systematised decoding of the public space projects, policies, and rationales that shaped the recent transformation of Lisbon Metropolitan Area. With a diverse range of authors actively engaged in academic research and professorship, in design practice, and in policy-oriented roles, the book concludes with the outlining of forward-looking guidelines, policy recommendations, and design experimentations. This book will be of interest to researchers and students of architecture, urbanism, landscape architecture and geography. The Open Access version of this book, available at http://www.taylorfrancis.com, has been made available under a Creative Commons Attribution (CC BY) 4.0 license.