Indeed, masking this cathedral was very dangerous. But there is a possibility that this is just a legend. However, I am glad that the Cathedral of the Virgin Mary has been successfully restored. I often encounter a ban on filming, but most often these are just local rules. You ask permission and they let you take pictures. Especially if you use a smartphone. I twice saw a ban on filming in Belarusian Catholic cathedrals - in Pinsk and Minsk. In both cases, these are ancient temples. Maybe if I ask permission they let me take some pictures. Maybe.

I lived in Zons, Germany for a while and went to see the majestic Cologne Cathedral. It's an indescribable feeling. I even wrote about it here. But due to covid restrictions, I couldn't get inside.