Frescoes are a type of mural painting created on freshly laid wet plaster. As the plaster dries, the pigments bond with it, making the artwork an integral part of the wall. This technique has been used since ancient times, notably in Ancient Rome and during the Renaissance, allowing for vibrant colors and durability. Artists like Michelangelo and Raphael are famous for their frescoes, which often depict religious or historical themes. The process requires skill and speed, as the artist must work quickly before the plaster dries. Frescoes can be found in churches, palaces, and public buildings around the world.