For the 4th edition of the Reinventing Cities competition, identify three participating cities and one specific site for each. Additionally, find the main objective of the competition as outlined in the 'Application Guidelines' section. Provide both the cities/sites and the objective.
Navigate to the 'Sites in competition' page. Identify three distinct participating cities and one specific site for each from the available list. Navigate to the 'Application Guidelines' page. Locate and extract the primary objective of the Reinventing Cities competition from the 'Objectives' section.
List three distinct cities participating in the 4th edition (e.g., Milan, New York, San Antonio) and for each, state one specific site (e.g., for Milan: Scalo di Porta Romana, for New York: The Bronx Hub, for San Antonio: The Alamo Plaza). State the primary objective of the Reinventing Cities competition exactly as it appears in the 'Application Guidelines': 'Reinventing Cities is an international competition initiated by the C40 to stimulate ambitious carbon-neutral developments across the globe and to transform underutilized sites into beacons of sustainability and resilience.'