Many questions remain unanswered about this unusual pyramidal structure overlooking the town of Autun. When was it built? What was its function? This structure is most likely a funerary monument, built near the road that linked Autun to Lyon. It is believed to have been constructed in the first century on one of the town’s ancient necropolises. The monument is made of solid masonry and has no interior chamber, so it is not known whether it was a mausoleum or a cenotaph. The stone monument measures 34 feet (10.5 meters) on…