The Classense Library is hosted in the ancient Camaldolese abbey, the construction of which began in 1512. Over the centuries, the building has undergone continous expansion works, thus becoming one of the biggest and most impressive monuments of the Camaldolese order. Paintings and artworks by numerous artists from the 16th to the 18th century are still decorating the library rooms and corridors. The Aula Magna or Libreria is of utmost importance: built between 17th and 18th century by abbot Pietro Canneti, it is adorned with statues, stuccoes and finely carved wood shelves, and decorated with frescoes and paintings. The whole complex is an authentic architectural and artistic treasure.