The Basilica of San Petronio is located in Piazza Maggiore in central Bologna. The length of the building is 132 meters, its width - 60 meters, the height of the vaults - 45 meters, volume - 270.000 cubic meters. The cathedral is the fifth largest church in Europe. His wall paintings and polychrome stained glass windows are also of great interest. The cathedral is dedicated to St. Petronius, who in the V century was the bishop of Bologna and the patron saint of this city. The beginning of construction of the building dates back to 1390, when the city commissioned the architect Antonio di Vincenzo to build a Gothic cathedral in the Gothic style in Bologna, which should exceed the size of St.→