When you hear the word art, what image pops into your mind? For most of us, we think of a landscape or portrait. In other words, we often use the word art and painting interchangeably. Of course, art can involve an array of media, such as sculptures, sketches, and so forth. One of the most fascinating varieties of art is wall art. We can even break down this general category of art, into sub-categories. If you are considering adding wall art to the walls of any room, then consider these primary types: Wall grilles - Historically, people have used grilles as an added safeguard for windows and doors.