All of those tall buildings look like antenna.
https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Empire_State_Building_cropped.jpg/150px-Empire_State_Building_cropped.jpg
That makes sense.
https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg/250px-Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg
https://static.wikia.nocookie.net/bttf/images/6/6c/Marty-courthouse-1955.jpg/revision/latest?cb=20071115220259
https://images.skyscrapercenter.com/building/p8240424a.jpg