In my travelling career, I have seen lots of *no photography zones*, but the reasoning behind it mostly made sense. It is related to national security (infrastructure, proximity of military bases) and museums (copyright issues and/or light-sensitive works).

However, I have seen also places where I could not justify it. For instance, recently I was in Jeita Grotto in Lebanon. They have a *no photography* policy that it is so strict that they require people to leave cameras and even mobile phones in a locker prior to entering. The cave is amazing, and it is a pity that I could not take any photos. And I still do not understand why, there is nothing sensitive inside. And it's not like I wouldn't go there if I had seen the photos. On the contrary, it would encourage me even more to go there after seeing the photos that other tourists took.

Why do some places have a strict *no photo* policy?