The incredible San Petronio Basilica in Bologna is in fact the tenth largest in the world by volume !! It certainly felt pretty big !!! It is 132 meters long and 66 meters wide and how lovely to see it full of people....not meaning tourists but an active congregation attending a service. So many churches these days in Australia have very poor attendances. Twice now ( 2002 and 2006 ) plans have been made to blow up this Basilica by terrorists.....luckily foiled and stopped by Italian police. A 15th century fresco, they claim, is insulting to the Islamic religion. Saints preserve us !!!!!!