The church has a vibrant religious life and holds 5 services on weekdays and 7 on Sundays. The peaceful prayers are accompanied by music from its famous organs.
The cathedral has also been the site of some of the most famous royal events in history. It was here that Mary, Queen of Scots married her first husband, the future King Francois II, in 1558 while Napoleon and Josephine were crowned as French Emperor and Empress at Notre-Dame in 1804.
Image Source: Getty/ Frederic Soltan