- Jabir ibn Aflah (Geber) - Correction of the Almagest
Original is from the 12th century. Biblioteca Malatestiana in Cesena. - Collegiata di Santa Maria Assunta
Old Testament by Bartolo di Fredi (~1360). - Collegiata di Santa Maria Assunta
New Testament by Barna da Siena and/or Lippo Memmi (~1345). - Siena Cathedral
The divine interior of the Cathedral.