The Loggia degli Osii is a historical building of Milan, Italy. It is located in Piazza Mercanti, a central city square of Milan that used to be its centre in the Middle Ages.
Wikipedia https://en.wikipedia.org/wiki/Loggia_degli_Osii
Address Piazza dei Mercanti, 9, Milan, MI, Italy
Coordinates 45°27'52.074" N 9°11'16.002" E