Designed by 20-year-old Longhena, this church is a masterpiece of 17th-century architecture. The dominating feature is its octagonal dome, which contains a lantern showing an image of the Madonna; while the smaller dome has a statue of San Marco. The interior consists of a nave, three chapels and a floor made of multicolored marble with a design of five roses in the center. The magnificent altar, also designed by Longhena, is particularly ornate. To its right is Tintoretto's Le Nozze di Cana, while the ceiling of the vestry is adorned with paintings by Titian.