The Libreria Piccolominea is located in a small room in the Siena Cathedral (Duomo). The imposing church, inside and out, was constructed between the years 1215 and 1263.
The room contains a collection of choir books.
And these eye-popping frescoes, painted by Bernadino di Betto.
The ceiling was painted by Pinturicchio.
A combination of the 2.