The Monastery of Panagia Blacherna (Παναγίας βρίσκεται) is located north of Arta, on the opposite side of the Arachthos River. It was named after the famous church of Blachernai in Constantinople. The church, which served as the katholikon of a monastery, was built over the ruins of an older church. It is three-aisled basilica dating to the 13th century.