The Basilica Abbey of San Mercuriale is the main religious building in Forlì, in Romagna; the rather smaller cathedral was largely destroyed by fire in the 19th century.
Wikipedia https://en.wikipedia.org/wiki/Abbey_of_San_Mercuriale,_Forlì
Official Website http://www.diocesiforli.it/
Address 6 Largo Famiglia De Calboli, Forlì 47121, Italy
Coordinates 44°13'21.583" N 12°2'32.56" E