Beautiful cathedral with regard to architecture, b...

Beautiful cathedral with regard to architecture, but I was unpleasantly surprised by the lack of respect of the tourists inside the building and moreover during the office. I also advise the climb to the towers: the view is of course beautiful, but the staff responsible for supervising visitors is non-existent or unpleasant. Several times we found ourselves in dangerous situations because he could not manage properly the flow of tourists who climbed from one floor to another. No indication of the course, even less explanations on the history of the cathedral and architecture ... 10 euros stolen.