walls and leave behind a mixture of fabric fibers and particles that they've explained all this creates problems for the cathedral. and that's when i'm i've got all these people moving through the building and those particles settle on the artworks so we were constantly to limit the damage but we also want to make sure that the building remains open to a large number of visitors. that includes the faithful up to six masses a day are held here these services provide brief response between the waves of tourists. many of them don't show proper respect right now we have a problem with coke amount players we've actually seen them leaping over pews i'm not a very religious person myself but i still find it annoying it's just respectful cathedral it's a remarkable achievement it took centuries to build and people should respect that . the security stuff on responsible for keeping things under control but who