History of Florence | Florence Italy Blog. Brunelleschi's dome. "At the Opera del Duomo’s website, there’s a special section dedicated to this famous piece. After 15 years of hard work, finally all the ancient documents have been digitalized and can be consulted by anyone. Check the following link – www.operaduomo.firenze.it/cupola/home_eng.html." And check this blog for lots more interesting stuff.