- 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. - Siena Cathedral
Floors in the Piccolomini Library. - Palazzo Vecchio
Officially, such decorations are called grotesque. - Palazzo Vecchio
Grotesque or not, I like them a lot.