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
Hyannis Port Historic District The district does have a few 18th-century houses, but most of its houses are in the styles popular in the late 19th and early 20th centuries. The most famous residents of Hyannis Port, however, are the Kennedy family, whose compound is a National Historic Landmark. Joseph P. and Rose Kennedy purchased the compound's main house in 1926. Hyannis Port Historic District The Hyannis Port Historic District encompasses the historic heart of Hyannis Port, Massachusetts, an area that was intensively developed as a summer resort community beginning in the later decades of the 19th century. The district is about in size,