ancient nikopolis in preveza greece paleochristian church in the castle of nikolopils culumns mosaics

actio aktio ancient antiquity archeology august augustus avgoustus basilica battle castle ceasar ceazar church classic classical cristian culumns empire europe field fort fortres greece greek historic ipiros kleopatra mediterranean monument mosaics nicopoli nikopoli nikopolis paleochristian preveza province remains roman romanesque ruins temple theater theatre travel walls