The Notre Dame is an example of great French Gothic art. Check out the detail on the facade which displays stories from the Bible and from Christian history. The view from the top of the Notre Dame is mindblowing, not only do you get to see the gargoyles up close, you also have a good view of the city with the Eiffel tower and the Sacre Coeur build on the top of a hill. The only downside is the the queue to enter the stairs leading up to the top of the Notre Dame can take a long time. Though you can skip the line if you book a Skip the Line: Notre Dame Cathedral, Tower and Ile de la Cite Half-Day Walking Tour. Be prepared for some exercise, 422 stairs up and down!