The largest gothic church north of the Alps is 160 m long and 76 m wide at the transept. The vault is 27 m high and the steeple 60 m. The main façade, completed between 1430 and 1470 by the addition of the towers, gives it a French-style 13C shape. The interior was built from the 13-15C and contains the largest collection of medieval stained glass windows in England.