Ancient city walls of Thessaloniki

Roman baths of Thessaloniki, now beneath Basilica of St. Demetrius

Agia Aikaterini, Byzantine church in Thessaloniki

Interior of Byzantine church in Thessaloniki

Two layers of older flooring uncovered during renovation of Byzantine church in Thessaloniki

Fifth century christian mosaic on underside of arch inside the Church of the Acheiropoietos -- Thessaloniki

Rotunda of St. George -- Thessaloniki

Remains of the Kamara, Galerius' Palace complex-- Thessaloniki

White Tower, marking end of ancient city walls -- Thessaloniki