One could believe that just the tourists see this ad, while the Parisians just pass by without noticing anything but the next metro, in their tremendous disregard. But I am sure that they have a third eye.
I love this one. A steeple is going down the river, in the photo, on a boat behind them (not exactly an everyday thing)...and with their expressions, it could almost be the world going by in front of them. This is a great shot.