Notre Dame is arguably one of the most famous churches in history, only slightly less famous than St. Peter's Basilica in Rome and La Sagrada Familia in Barcelona. Most of us grew up with the Disney classic based off Victor Hugo's work (The Hunchback of Notre Dame), and seeing it in person does not disappoint. The entry is free, although if you want the audio tour or to climb the tower, it does cost a small fee, if you want to go inside, get there early!! Notre Dame is also a great place for worship as well. For anyone of the Christian faith, it is a cool experience to pray in a place that people have been praying for centuries.