Port of Piraeus permanent navy base for the mighty Athenian fleet. However, in the late 4th century BC began a long period of decline for Piraeus; the harbours were only occasionally used for the Byzantine fleet and the city was mostly deserted throughout the Ottoman occupation of Greece. In 2002 PPA and the Greek government signed a concession agreement. The Greek government leased the port zone lands, buildings and facilities of Piraeus Port to PPA for 40 years. In 2008 the duration of the concession agreement was modified from 40 to 50 years. With this modification the lease is ending in 2052. Since
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,