Arta ( Greece ) is a city located in Epirus. Famous for the medieval bridge over the Arachthos River and its ancient sites from the era of Pyrrhus of Epirus and its well preserved 13th century castle. Close to the bridge, there is a centenarian plane tree, from 1976 characterized as a preserved natural monument. The beautiful dense leaves extend more than 200 m2. Also worth visiting is the famous Byzantine church of Panagia Parigoritissa, built in the 13th century.