Megalithic Walls of Altamura

The Megalithic Walls of Altamura are defensive fortifications constructed in the 4th century BCE to protect the ancient city of Altamura in southern Italy [1]. These monumental walls originally formed a circuit of approximately 3.6 kilometers, enclosing the settlement with imposing stone defenses [1]. Remaining sections stand about 4 meters tall with a base width of roughly 5 meters, demonstrating the massive scale of megalithic construction [1]. Only fragmented portions survive today [1].