Dome

The tympanum and archivolt of the right (south) portal, west front; The present building comprises an aisled nave of 11 bays, with a series of aisle chapels, and an apsidal choir with an ambulatory and three spaced radiating chapels. The substantial transept arms are aisled on both sides, with large eastern chapels, and developed portals flanked by towers. A massive lantern tower lights the crossing. The two western towers, the Tour St Romain (1160-1170) to the north and the Tour de Beurre to the south, flank the façade, rising beyond rather than above the western aisle bays. The south-west tower, the Tour de Beurre (so named because it was traditionally financed by a papal indulgence whereby people could eat butter during Lent provided they paid a fine to the building fund), was built by Guillaume Pontis and Jacques Le Roux between 1487 and 1507. The cathedral is still being restored after extensive damage in World War II. Source: Grove Art Online; http://www.oxfordartonline.com/ (accessed 7/16/2008)