Considering the Hotel Le Capanne in Arezzo?
A VT member wrote the following comment about visiting Arezzo:
Duomo - inside: architecture by Mikebond
The inside of the cathedral consists of a nave and two aisles. When you enter, you realize at once that this is a Gothic church: a lot of light, ogival vaults arches, high columns, many decorations. The apsis has very high (Gothic!) painted windows by Guillaume de Marcillat (early 16th century). Unfortunately, you can't see the decorations in the last image of this tip because the photo was taken against the light, I suppose.