Siena Cathedral, officially the Cathedral of Santa Maria Assunta, is a Gothic landmark in the heart of Siena’s medieval centre. Its elaborate marble façade combines sculpture, carved figures and gilded mosaics, while black-and-white bands climb the columns and walls inside. The effect is theatrical, but the cathedral remains an active place of worship as well as a major cultural site.
Built largely in the 13th and 14th centuries, the cathedral reflects the wealth and ambition of the medieval Sienese republic. An unfinished wall beside the church is a remnant of a vast planned extension abandoned in the 14th century. The cathedral is also closely tied to Siena’s devotion to the Virgin Mary, a central part of the city’s civic identity.
Inside, look for Nicola Pisano’s sculpted pulpit and the vivid Pinturicchio frescoes in the Piccolomini Library. The inlaid marble floor is another highlight, with biblical scenes, sibyls and allegories created by generations of artists. Much of the pavement is usually protected by coverings and exposed only for part of the year, so check the dates before visiting if seeing it in full is a priority.
The cathedral is a short walk from Piazza del Campo, though Siena’s steep, cobbled streets call for comfortable shoes. A combined ticket can include nearby sights such as the Baptistery, Crypt and Museo dell’Opera, where the Facciatone viewpoint offers a panorama over Siena. Check opening times around services and religious holidays, and dress modestly with shoulders and knees covered.