The Museum of Architecture of Antonio da Sangallo the Younger is located inside the fortress at the highest point of Montefiascone and is dedicated to the great Renaissance architect Antonio Sangallo the Younger who worked extensively in this area.
In the rooms on the ground floor there are many wooden reconstructions of the architect's best works. These reconstructions recall the first work of the great architect who came from a family of artists and wood workers.
Antonio Sangallo is famous above all for the military architecture and the fortifications that have been commissioned by great popes such as the Citadel of Ancona, Forte Michelangelo of Civitavecchia, the Rocca Paolina of Perugia, the Fortezza da Basso of Florence and also for the famous Pozzo di Saint Patrick in Orvieto.
Among the curiosities of the museum, there are coins of the mint of Castro created by Sangallo.