Basilica of the Sacré Cœur

The basilica is located at the summit of the butte Montmartre (highest point in the city of Paris). Sacré-Cœur is a double monument, political and cultural, both a national penance for the excesses of the Second Empire and socialist Paris Commune of 1871 crowning its most rebellious neighborhood, and an embodiment of conservative moral order, publicly dedicated to the Sacred Heart of Jesus, which was an increasingly popular vision of a loving and sympathetic Christ (wikipedia).

If you only have a limited amount of time in Paris, I would suggest skipping this attraction. Yes, the view of the city is nice (since you're basically on top of it). However, the most iconic feature of the Paris skyline is not visible... and not being able to see the Eiffel Tower kind of ruins the moment. For a better view, I would suggest going to the Arc de Triomphe. Also, the panhandlers hanging out at Sacré Cœur are some of the most annoying/aggressive in all of Paris (be on the lookout for pick pockets). You will be constantly hassled to buy cheap tourist stuff, beer, candy, etc. I came here to have a relaxing picnic on the lawn as the sun went down... and ended up leaving early. Some locals warned me that the area is not the safest after the sun goes down.

These are a few photos I took before I left.