This historic square is entirely surrounded by Dorian family palaces. The Church of Saint Matthew from 1125 used to serve as their chapel.
Wikipedia (Italian) http://it.wikipedia.org/wiki/Piazza_San_Matteo
Address 19 Piazza San Matteo, Genova 16123, Italy
Coordinates 44°24'29.992" N 8°55'58.318" E