Early Christian basilica at Katsivelos.
Three-aisled basilica with a narthex. Two rows of columns divide the interior into three aisles of which the two lateral must have had a second floor. The stone iconostasis is decorated with floral motifs and crosses. The mosaic floors, decorated with geometric and floral patterns, are also preserved. Dated to the 5th-7th centuries A.D.
Rock-cut cisterns. Impressive pillared cisterns quarried out in the rock at the south side of the Pyrgi hill. The water was carried to the city on the eastern part of the hill by means of a vaulted aueqduct. The structures are generally dated to the Roman period but an even earlier date should not be excluded.
Cemetery at Orthi Petra. The cemetery was used from the late Protogeometric until the early Archaic period (870/850-600 B.C.). A variety of burial practices has been observed, including simple inhumations, inhumations in pithos or amphora and cremations. Grave enclosures, funerary monuments, architectural and free-standing sculptures were also uncovered in the area.
Massive peribolos at the south end of Nissi hill. It is rectangular in plan, built of large ashlar blocks and was entered by a Doric propylon with five columns, in the middle of the west long side. Dated to ca. 400 B.C.
Hellenistic settlement at Nissi. Section of a Hellenistic settlement (330-67 B.C.) which is gradually uncovered by the recent excavations. The layout follows the natural slopes of the hill and not a regular pattern. Large parts of the rock were hewn in order to provide building areas. Each house covered an area of around 200 sq.m. and was provided with a cistern for the collection of water.