Thrace is a geographical and historical region in Southeast Europe. Bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Sea to the east, it comprises present-day southeastern Bulgaria, northeastern Greece, and the European part of Turkey, roughly the Roman Province of Thrace. Lands also inhabited by ancient Thracians extended in the north to modern-day Northern Bulgaria and Romania and to the west into Macedonia.
The physical–geographical boundaries of Thrace: the Balkan Mountains to the north, the Rhodope Mountains (highlighted) and the Bosporus.
Thrace in the Odrysian Kingdom showing several Thracian tribes. Sapeia was Northern Thrace and Asteia was Southern Thrace.
Skudrian (Thracian) soldier of the Achaemenid army, circa 480 BC. Xerxes I tomb relief.
Thracian Tomb of Kazanlak.
Western Thrace or West Thrace, also known as Greek Thrace or Aegean Thrace, is a geographic and historical region of Greece, between the Nestos and Evros rivers in the northeast of the country; East Thrace, which lies east of the river Evros, forms the European part of Turkey, and the area to the north, in Bulgaria, is known as Northern Thrace.
Ruins of the ancient city of Abdera
The ancient theatre of Maroneia
Roman mosaics in Plotinopolis, modern Didymoteicho
Greek administration stamp in Western Thrace, 1920