The cathedral is pure Gothic in style, particularly on its north side, and only the Romanesque tower remains from the former edifice, burnt down in 1230. The nave is flooded in light with its slender triforium crowned by large windows. Beautiful stained-glass bears witness to the development of this art from the 12C-16C. A few works of art are on display, including a majestic 17C baldachin above the high altar and several Gothic tombstones.