South of the Xanthi–Komotini provincial road lie the impressive ruins of the fortified city once known as "Bourou Kale." They have been identified with the Byzantine city of Anastasioupolis, later renamed Peritheorion. The city occupied a strategic position along the Via Egnatia and is first mentioned as Stabulo Diomedis, in the fertile region where, according to Homeric tradition, the horses of Diomedes once grazed. Emperor Anastasius I fortified the city for the first time, while Justinian I strengthened its defenses by constructing a coastal wall and a long wall that also functioned as an aqueduct. Later renamed Peritheorion, it developed into an important fortress and experienced periods of prosperity, destruction, reconstruction, and sieges until the Ottoman conquest. It remained inhabited until the end of the 17th century, while today its imposing fortification walls remain the city's most impressive surviving feature.

http://odysseus.culture.gr/Συντάκτης Σταυρούλα Δαδάκη, αρχαιολόγος