The Unification of Archaeological Sites - probably one of the most ambitious plans of urban transformation ever conceived - is now well under way in Athens, the densely populated historic capital of Greece. The plan has been set up to undertake the creation of a large open museum, a project of crucial importance for the capital is aesthetic appearance and cultural role, a project which shall unify the rich heritage of the past and the city's everyday life. The restoration of Plaka, and then Thission, Psyrri and the other old neighborhoods in the center of Athens started in the early 1990s. A vast network of pedestrian streets, together with financial incentives given to the owners of properties to renovate their homes completely changed the face of these areas. They have now become favorite spots for a quiet stroll during the day or at night. Athenians and tourists alike gather at the multitude of  tiny restaurants in Psyrri, or climb up to the northern side of the Acropolis, walk through the picturesque streets of Plaka, lined with beautifully restored private homes. The so-called historic triangle of Athens, the old commercial part of the city, has also improved dramatically. Ermou, the principal commercial street, as well as many other narrower side streets have been freed from traffic and turned over to pedestrians, giving new life to this lovely part of downtown Athens, which for years had declined progressively