In the winter of 52 B.C.E., Vercengetorix a chieftan of the Averni tribe of Gauls, headed a rebellion against Roman rule of Gaul. Julius Caesar, prconsul of Transalpine Gaul, crossed the Alps with troops, and met the Gallic army several times. Vercengetorix pursued a policy of retreating to natural fortifications, while burning Gallic towns to deprive the Roman army of sustenance. Vercengetorix eventually retreated to Alesia, a hilltop town in what is now Burgundy, France, northwest of Dijon. Caesar laid seige to the Gauls, by constructing an earthen and wooden rampart that completely encircled the hill. When a Gallic relief army appeared, Caesar constructed another rampart, facing outwards, with the Romans encamped between the inner and outer walls. The Romans successfully fended off a coordinated attack by Vercengetorix's army and the relief Gallic army. Vercengetorix surrendered, and was taken to Rome as a prisoner, where 6 years later he was ritually strangled. Napoleon III erected a large statue to Vercengetorix which stands atop the hill were Alesia was located. A 360 degree mosaic map is located atop the hill, recreating the view of the Roman ramparts. There is a small museum in Alise-Sainte-Renne, displaying archaeological finds, including Roman and Gallic coins, armaments, etc.