Basilica of Sant'Andrea
The Basilica of Sant'Andrea is a Roman Catholic co-cathedral and minor basilica in Mantua, Lombardy (Italy). It is one of the major works of 15th-century Renaissance architecture in Northern Italy. Commissioned by Ludovico III Gonzaga, the church was begun in 1472 according to designs by Leon Battista Alberti on a site occupied by a Benedictine monastery, of which the bell tower remains. The building, however, was only finished 328 years later.