Well, Jef has a point.
Pisa: Toscana
David: Florencia
Colosseo: Roma
So, even if I find more -cultural important- (I'm a foreign) Santa Maria (since cenacolo is there) I found more apropiated for fudcon logo the Domo.
is a +1 from me, I just fix the shape a little since the tips from cathedral are really fine, they seem to not be with a similar size.