2 Best Sights in Champagne Country, France

Constructed between 1150 and 1230, the Cathédrale Notre-Dame is a superb example of early Gothic architecture. The light interior gives the impression of order and immense length, and the first flourishing of Gothic design is reflected in the harmony of the four-tier nave: from the bottom up, observe the wide arcades, the double windows of the tribune, the squat windows of the triforium, and, finally, the upper windows of the clerestory. Medieval stained glass includes the rose window dedicated to the liberal arts in the left transept, and the windows in the flat east end, an unusual feature for France although common in England. The majestic towers can be explored during guided visits; these depart from the tourist office, which occupies a 12th-century hospital on the cathedral square. Audio guides can be rented for €5, although they don't include the towers.

Laon's art and archaeology museum has a collection of Mediterranean finds from the Bronze Age through the Gallo-Roman era that is second in importance only to that at the Louvre. Other highlights include fine 17th- and 18th-century paintings by celebrated local artists Mathieu Le Nain and Jean-Simon Berthélemy, as well as the chilling effigy of Guillaume de Harcigny, doctor to the insane Charles VI. The Chapelle des Templiers (closed for restoration until 2024) in the garden—a small, octagonal, 12th-century chapel topped by a shallow dome—houses fragments of the cathedral's gable.