Lippo Memmi
The campanile or bell tower, Torre del Mangia, was built between 1325 and 1344; its crown was designed by the painter Lippo Memmi. The tower was designed to be taller than the tower in neighboring rival Florence; at the time it was the tallest structure in Italy. It was fitted with a mechanical clock during the mid-14th century. Its design has been used as the basis for several other campaniles, including the Dock Tower in Grimsby, England, constructed in 1852 and the Joseph Chamberlain Memorial Clock Tower in the Edgbaston campus of the University of Birmingham, which was completed in 1908.