A Christian basilica was constructed in the first half of the 5th century at Olympia, where the statue of Zeus by Phidias had been noted as one of the Seven Wonders of the Ancient World ever since the 2nd century BC list compiled by Antipater of Sidon. Cultural tourism thrived at Olympia and Ancient Greek religion continued to be practised there well into the 4th century. At Nicopolis in Epirus, founded by Augustus to commemorate his victory at the Battle of Actium at the end of the Last war of the Roman Republic, four early Christian basilicas were built during Late Antiquity whose remains survive to the present. In the 4th or 5th century, Nicopolis was surrounded by a new city wall.