Dacian Fortresses of the Orăștie Mountains

Built in murus dacicus style, the six Dacian Fortresses of the Orăștie Mountains (Romanian: Cetăți dacice din Munții Orăștiei), in Romania, were created in the 1st centuries BC and AD as protection against Roman conquest, and played an important role during the Roman–Dacian wars. Their extensive and well-preserved remains present a picture of a vigorous and innovative ancient civilization.