The museum of the Duomo is housed in Palazzo Reale in Piazza Duomo. It has an area of 2000sqm and is divided into 26 exhibition rooms containing sculptures, paintings, terracotta studies and architectural models. The pieces of the collection are displayed on a chronological order, retracing all the phases of the cathedral’s construction, from 1386 until the 20th century.
The collection begins with the rooms of the Cathedral Treasure, which contain objects older than the Cathedral itself such as 5th-9th century ivory diptyches, 11th century works attributed to Ariberto d’Intimiano, and 16th -17th century gold, enamel and embossed work. The most important architectural model is “modellone”, whose name is due to its scale (1:20), which is made of lime and walnut wood and was completed over three centuries.
The tapestries depicting scenes from the Old Testament are also very important; they are located in the Stained Glass room, the one that illustrates the technical and stylistic development of the art of stained glass over the centuries.