Piraeus of social problems also emerged with the concentration of new populations in the suburbs of the old city, such as Nikaia, Keratsini, Drapetsona and Korydallos. The involvement of Greece in World War II came as a major setback to the city's progress. After the war, the city began its development once more, as damage to the port and the city were repaired and new additions took shape after 1955. Piraeus is now the third largest municipality in Greece; the city proper with its suburbs form the Piraeus urban area, which is incorporated in the Athens urban area, thus making Piraeus
European Route of Historic Theatres European Route of Historic Theatres The European Route of Historic Theatres is a holiday route and European Cultural Route, that runs through many European countries. It links cities with important historic theatres from the 16th to 19th centuries. This cultural route was initiated by the members of the organisation, "Perspectiv – Association of Historic Theatres in Europe", which was founded in October 2003 with the aim of preserving the cultural heritage of historic theatres in Europe. The head offices of this charitable association are in the Goethe town of Bad Lauchstädt and city of Berlin. The project is supported by