 Between Monastiraki and Attiki the line runs underground.At Monastiraki passengers can change to Line 3 and at Omonoia and Attiki to Line 2.From Attiki the line continues north, following the alignment of the old Lavrion Square-Strofyli railway through Patissia, Nea Ionia, Irakleio, Marousi and terminates at Kifissia.