[Phouepou]

There's another explanation : there's many places, especially touristic ones where you can't take pictures just because there's a contract between the place -mostly a cathedral or museum- and a photographer who has exclusivity. The goal is to sell postcards, so if you want a picture, you have to buy postcards, as simple as that. Try to find out if there are postcards available, I'd bet a beer that there are, for sale off-course !