The artist known for his mural work in the U.S. Capitol building is Constantino Brumidi. An Italian-American painter, Brumidi created several significant murals within the Capitol, including the famous "Apotheosis of Washington," which depicts George Washington ascending to heaven surrounded by allegorical figures. Brumidi's work reflects both classical and contemporary themes and showcases his exceptional skill in fresco painting. He began his work in the Capitol in 1855 and continued until his death in 1880. Brumidi's contributions significantly shaped the artistic heritage of the Capitol and remain admired today.