Basilica di 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 (1414) remains. The building, however, was only finished 328 years later. Though later changes and expansions altered Alberti's design, the church is still considered to be one of Alberti's most complete works. It looms over the Piazza Mantegna.
The façade, built abutting a pre-existing bell tower (1414), is based on the scheme of the ancient Arch of Trajan at Ancona. It is largely a brick structure with hardened stucco used for the surface. It is defined by a large central arch, flanked by Corinthian pilasters. There are smaller openings to the right and left of the arch. A novel aspect of the design was the integration of a lower order, comprising the fluted Corinthian columns, with a giant order, comprising the taller, unfluted pilasters. The whole is surmounted by a pediment and above that a vaulted structure, the purpose of which is not exactly known, but presumably to shade the window opening into the church behind it.