These four works of art all deal with architecture and one point perspective. One point perspective is an approximate representation, on a flat surface of an image as surface. Some of the artworks have people in the artwork such as, The Ideal City by Fra Carnevale and St. Bernardino Preaching by Lorenzo di Pietro di Giovanni. Perspective Scenery by Diego di Siloé and the Architectural Veduta by Francesco di Giorgio Martini focus on the architecture. They used different mediums, drawing, oil and tempera on panel, painting and tempera paint on canvas transferred from wood. Most of these works were during the late 15th century except for the Perspective Scenery which was created in the 16th century. Perspective Scenery is the only surviving architectural works from the artist. This work has elements of fantasy in it which lead it to be believed that it is a short lived design or stage piece. The Ideal City had Renaissance ideas and offers a model of the type of architect of a virtuous military ruler.The Architectural Veduta focuses more on space and central perspective as well as, urban planning.Central Perspective is relative to the observer, all the converging lines lead toward a single vanishing point, at the center of a composition. Urban Planning is the branch of architecture dealing with the design and organization of urban space and activities. St. Bernardino Preaching s a painting that focuses on one of the most important traveling preachers at that time. The painter shows the interior of the church and uses new rules of perspective to focus on the crucifix at the center of the composition. So, all of these works of art deal with architecture they just focused and created them in different ways.