Cathedral Basilica di San Petronio in Bologna, Italy

https://www.flickr.com/photos/lorenzoclick/44410822860/in/photolist-2aEr5oq-2hwHdZA-LXV6ck-L1G3qJ-adorCw-yQ3xk1-2hrREQ3-vknM2o-UG6v4S-BcYpWv-BaLvCs-vCqKtP-UG6vj1-2hsL7PM-78rQ9t-GBrYa1-Uvqt9y-Mm2J95-TtfJUU-28ojaFE-2hsjqLw-Mm2JHw-26HVu63-26HVtWA-K3BV7o-29rcMBd-28oj9Yh-5Uhbpg-sCRUAz-sAHotE-smiLhf-sCWNNn-smgZcA-24qNtJo-smmEk7-Bfg26f-smwzug-smhpyd-sCMVok-smmqyS-sCW69g-rFTeTQ-sAAqwm-sAyg9N-29rcJD9-smnjxw-rG5jyD-rG2TeV-rG1b1q-rG1mtZ