Did you know that it is illegal to photograph the Eiffel Tower at night? Taking pictures of the Paris landmark is perfectly fine during the day, but not at night. Or, to be realistic, you can't take photos of the tower at night and use them for commercial purposes. The reasoning is bound up in weird copyright laws.
It never occurred to me that a building could be copyrighted. Sure, I understand that you can't just design and build a building by copying some other architect's work, but taking a picture should be okay. And it is, in most places. But not France. -via Laughing Squid