 The only buildings appearing on the maps of the period were the manor of the Duchess of Plaisance (known as "Ilissia" and today housing the Byzantine Museum) and the Petraki Monastery, both built in country areas far from the centre of town.The limited significance of the area at the time may be revealed by the fact that a girl's orphanage (which no longer exists) was built there in 1854.Furthermore, the land along Kifissias Avenue (now named Vasilissis Sofias Avenue) also remained unbuilt and was reserved by the state for the construction of ministry buildings.