Giotto's master, Cimabue, was one of the two most famous painters of Tuscany. He worked in Florence, while the other famous painter, Duccio, worked mainly in Siena. Around 1280, Giotto and Cimabue went to Rome, where there were several fresco painters. The most famous painter in Rome was Pietro Cavallini. The famous sculptor and architect from Florence, Arnolfo di Cambio, was also working in Rome. Giotto would have seen the paintings and sculpture by these different artists. Pietro Cavallini's paintings and Arnolfo's sculpture was far more realistic and three-dimensional than the paintings by Giotto's teacher Cimabue.