Cathedral of St. Martin
The Cathedral of San Martin (San Martino as the Galicians fondly call it) is, in my humble opinion, the most impressive monument in Orense. It is primarily Romanesque (the three door are clearly Romanesque cathedral), but has touches of different styles. The exterior is a wonder to look at, especially the western gate (the main gate). Unfortunately I couldn't go inside because they were giving Mass, but at least I'll have an excuse to go back soon.