Putting Sacre-Coeur to your back, you look out over the entirety of Paris from the top of Montmartre. Absolutely breathtaking view.
At the top of the highest hill in Paris is a church: Sacre-Coeur. As with all the architecture in Paris, it was beautifully carved.
Tucked in behind it is a series of small gift shops with very reasonably priced souvenirs, and a courtyard where local artists hang out and paint caricatures and landscapes while you watch. And bakeries. Obviously.