The document is a report on the design of a future floating city called Emerald. It begins with an introduction explaining the purpose of the project is to propose a new city layout as the current city is no longer livable. It will include research on ancient, present and future cities. The report then provides definitions of what makes a city and discusses the brief history of cities. It also outlines what makes a good, sustainable future city. The document provides an investigation of the ancient city of Venice, including its founding date, expansion, impacts of war and disasters. It aims to understand city design and sustainability for the new floating city project.