Nicopolis is located in the Prefecture of Preveza and occupies approximately 9000 acres. Today is the biggest ancient city throughout Greece. Founded 31 BC by the Roman Augustus Octavianus in order to honor the gods Mars, God of war and Poseidon God of the sea, which helped him to defeat at the battle of Actium. The excavations in the Ancient Nicopoli started by the archaeologist Alexander Filadelfea, who discovered great monuments and mosaics from the early years of Christianity. Visitors can see the theater of Octavian, the stadium, the gymnasium and the impressive aqueduct carrying water from the Loyro River to Agios Georgios.