User blog comment:Miskos3/Fairy Tail Chapter 490: Fairy Tail Zerø, Review/@comment-25305529-20160625193612/@comment-7418318-20160625213915

After the self-destruction of the machina Wahl sent to the cathedral, the front and the two highest towers were shown still standing, so I guess it's either the backside or just a part in the middle that's collapsed. Or it could even just be a hole in the roof, with the outer walls all more or less intact (minus the windows of course).