Milan Cathedral is the cathedral church of Milan, Lombardy, Italy. Dedicated to the Nativity of St Mary, it is the seat of the Archbishop of Milan. The cathedral took nearly six centuries to complete: construction began in 1386, and the final details were completed in 1965. Milan Cathedral, called Duomo di Milano in Italian, is a vast Gothic-style cathedral, located in the heart of Milan. It is 515 ft (157 metres) long and 302 ft (92 m) wide. It can house up to 40.000 people. Duomo di Milano is one of the largest Catholic churches in the world.