Cathedral or Duomo of Orvieto is the main attraction of the town and its most remarkable feature. The building is located in the heart of the city on a hill and it is visible from miles away. The construction of Orvieto Cathedral started in 1290, under the supervision of Pope Nicholas IV. The construction was attended by 33 architects, of which the most important is Lorenzo Maitani, 150 sculptors, 70 painters and 90 specialists in mosaic. Sculptural works show scenes from the Old ...