Pistoia Cathedral (Italian: Duomo di Pistoia or Cattedrale di San Zeno) is the main religious building of Pistoia, Tuscany, central Italy, located in the Piazza del Duomo in the centre of the city. It is the seat of the Bishop of Pistoia and is dedicated to Saint Zeno of Verona.
Most probably built in the 10th century, it has a façade in Romanesque style, inspired by other churches in Pistoia (San Bartolomeo and San Jacopo). The interior has a nave and two side-aisles, with a presbytery and crypt. A restoration in 1952-1999 returned the church to its original lines. [source]