The early and High Gothic Laon Cathedral has a square lantern tower over the crossing of the transept; two towers on the western front; and two towers on the ends of the transepts. Laon's towers, with the exception of the central tower, are built with two stacked vaulted chambers pierced by lancet openings. The two western towers contain life-size stone statues of sixteen oxen in their upper arcades, said to honour the animals who hauled the stone during the cathedral's construction.