- Saint Andrew's Chapel
- Saint Andrew's Chapel
- Saint Andrew's Chapel
- Cathedral
- Titus Lucretius Carus - De Rerum Natura (On the Nature of Things)
- Neume initial
- Jabir ibn Aflah (Geber) - Correction of the Almagest
- The Resurrection by Piero della Francesca
- Orvieto Cathedral
- The rose window by Orcagna
- San Brizio Chapel, Orvieto Cathedral
- Chapel of the Corporal, Orvieto Cathedral
- Saint Blaise
- Flagellation of Christ
- Flagellation of Christ
- Institution of Eucharist
- Madonna with Child by Vincenzo Pagani
- Cathedral
- Collegiata di Santa Maria Assunta
- Collegiata di Santa Maria Assunta
- Siena Cathedral
- Siena Cathedral
- Siena Cathedral
- The Arian Baptistery
- The Arian Baptistery
- The Orthodox Baptistery
- The Orthodox Baptistery
- The Orthodox Baptistery
- The Orthodox Baptistery
- The Orthodox Baptistery
- The Orthodox Baptistery
- Saint Andrew's Chapel
- Domus dei Tappeti di Pietra