With its “view of stern and grace”, Saint Petersburg required a unified construction as an ensemble with Teutonic unity, qualities which emerged simultaneously with its birth. Criterion (vi): Saint Petersburg was twice directly and tangibly associated with events of universal significance. IntegrityThe Saint Petersburg metropolitan area as a whole, and its historic centre in particular, have preserved their integrity. In recent years, legislation has been expanded in the sphere of protection of cultural heritage and urban development. In October 2014 an agreement on cooperation was signed between the Ministry of Culture, the Government of Saint Petersburg and Leningrad Oblast Government.