The paintings that are regarded as Uccello's masterpieces are frescoes of Noah's Ark and the Great Flood in the Church of Santa Maria Novella in Florence. Unfortunately, they are quite badly damaged and partly lost, but even so, it is possible to see what a clever artist Uccello was. There are two things remarkable about the pictures. Firstly, they are very realistic. The second is that they use perspective to give the impression that the viewer is looking into the scene.