The choir, with its original three-storey elevation and extremely tall clerestory, was completed in 1211.

[1] The single western tower dates from the mid-13th century and is an imitation of those of Notre-Dame de Paris, which it equals in height (66 metres (217 ft)).

A tapestry from the 15th century depicts the life of the martyrs Gervasius and Protasius, the patron saints of the cathedral.

Rubens' Adoration of the Shepherds hangs in the northern transept, as does a painting by Philippe de Champaigne.

[3] On January 12, 2017, during a winter storm, strong winds collapsed in a significant portion of the west rose window.