Beneath the cathedral is the latest major artistic discovery in Siena, in a room widely referred to as the "crypt," although no bodies have been found here. In fact, this subterranean room is part of the pre-14th-century Romanesque church. What the 21st-century restoration workers scraped up was a cycle of frescoes painted between 1270 and 1275, shedding some light on the early development of the Sienese school. The crypt has only been viewable since 2004, and scholars have yet to attribute the cycle to a particular artist. Some have speculated it may be the work of Duccio, though he would have been exceedingly young at the time. What is more or less certain is that the style and composition, such as the way Christ's feet are oddly crossed on the crucifix, have been mirrored -- almost copied -- by later painters. Though chipped and still a little rough around the edges, the vibrant blue, gold, and burgundy colors have been impressively preserved thanks to the lack of light and humidity since the 1300s.