The Church dominates the homonym Square, reference point for the surrounding urban area. Originally, the building was part of the complex of the St. Mark's Convent, which since 1869 houses the St. Mark's national Museum. The facade is Neoclassical style and dates from 1777-78, divided in three orders and punctuated by pilasters into three horizontal bands, with a single portal surmounted by a window. Inside is a single nave with side chapels, designed by Giambologna in 1579 and adorned with tables sixteenth. 1679 date from the grandstand and ceiling carved and designed by Pier Francesco Silvani, while the canvas at the center of the ceiling, with the Assumption of the Virgin, is work by Giovanni Antonio Pucci (1725). On the left, a painting by Giovan Battista Paggi with the Transfiguration (which replaced the Pala by Botticelli). The first right altar is decorated by Pala of Saints, by Tito (1593); the second altar bears a Madonna with Saints and Fra Bartolomeo; the third, has a large mosaic of the Virgin from the old St. Peter's Basilica in Vatican.