Apollonia is an ancient town (former Apollonia in Mygdonia) in Greek Macedonia along the Via Egnatia, about midway between Thessalonica and Amphipolis. The modern town and municipality Apollonia is part of the Thessaloniki Prefecture. Mygdonia was an ancient territory, later conquered by Macedon, which comprised the plains around Therma (Thessalonica) together with the valleys of Klisali and Besikia, including the area of the Axios river mouth and extending as far east as Lake Bolbe. ... Ancient Via Egnatia route Via Egnatia (Greek: Εγνατία Οδός) was a road constructed by the Romans around 146 BC. It was named after Gnaeus Egnatius, proconsul of Macedonia, who ordered its construction. ... The White Tower The Arch of Galerius Map showing the Thessaloníki prefecture Thessaloníki (Θεσσαλονίκη) is the second-largest city of Greece and is the principal city and the capital of the Greek region of Macedonia. ... Amphipolis (modern Greek: Amfipoli), was an ancient city of Macedonia, on the east bank of the river Strymon, where it emerges from Lake Cercinitis, about 3 m. ... Thessaloniki (Greek: Θεσσαλονίκη) is a nomos (prefecture) in Greece, containing Thessaloniki, Lagana and the northern portion of the Chalcidicean peninsula. ...