Anastasian Wall

The Anastasian Wall (Greek: Ἀναστάσειον Τεῖχος, Anastáseion Teîchos; Turkish: Anastasius Suru) or the Long Walls of Thrace (Greek: Μακρὰ Τείχη τῆς Θράκης, Makrà Teíchē tês Thrákēs; Turkish: Uzun Duvar) or simply Long Wall / Macron Teichos (Ancient Greek: Μακρὸν τεῖχος) is an ancient stone and turf fortification located 64 km (40 mi) west of Istanbul, Turkey, built by the Eastern Roman Empire during the late 5th century.