The Sacre Coeur on Montmartre. Taken on our two day Extreme Photowalk in Paris.
To say that it is crowded at the Sacre Coeur is a severe understatement. It was hard to move around, let alone take photographs. The only option is to look up, and fortunately the architecture is great to look up at.
To anyone going there I would advise you to be very vigilant as there are plenty of scammers and pickpockets operating among the crowds.