The Certosa di Pavia (35 Km from Milano) as seen from the Small Cloister

The Certosa di Pavia, Gothic and Renaissance styles, 

is a monastery complex in Lombardy (one of the largest
monasteries in Italy)  35 km north of Pavia. 

Built in 1396-1495 on the border of a large hunting park
belonging to the Visconti family of Milan,
is one of the largest monasteries in Italy.

Here all info