Medieval frescoes are large paintings created on the walls of churches and other buildings during the Middle Ages. These artworks were made by applying water-based pigments onto freshly laid wet plaster, allowing the colors to bond with the wall as it dried. This technique made the paintings durable and vibrant, often depicting religious themes and stories from the Bible. Frescoes served both decorative and educational purposes, helping to convey spiritual messages to a largely illiterate population. Many famous examples can be found in Italy, such as the works of artists like Giotto and Michelangelo, who used this medium to enhance the beauty and meaning of sacred spaces.