Introduction to the Cathedral Museum: The Cathedral Museum (Opera del Duomo Museum) located on the right side of the Cathedral is another attraction worth visiting. It was originally a large-scale church. The museum collects a religious decorative painting "Virgin Madonna" created by Duccio, the founder of the Siena School of Painting, in the 14th century, which embodies the perfect combination of Byzantine art and Gothic lyrical style. Climb up the narrow spiral staircase to the terrace of the museum, and the entire city of Siena will appear in front of you at once: the entire pastoral square is unobstructed, and beyond the layers of rooftops, you can also enjoy the distant and profound scenery in the distance. beautiful Tuscan countryside.