The Louvre displays a variety of oil paintings, sculptures, and other works of art. The term 'oils' is used to refer to oil paintings, which are created by mixing pigments with a drying oil, such as linseed or walnut oil. Oil paintings have been around since the 15th century and are still popular today. The Louvre is home to some of the world's most famous oil paintings, including the Mona Lisa and the Wedding at Cana.