Notre Dame Cathedral
Notre Dame has been through it all. As Paris as Paris herself, Notre Dame is situated on the island that was the first area of Paris settled 1300 years or so ago! On Sundays at 10 a.m., you can catch the gorgeous Gregorian chanted mass.
Visit the official Notre Dame website for admission prices and hours of operation.
Cathédrale Notre-Dame de Paris
Map it!
6 Parvis Notre-Dame
Place Jean-Paul II
75004 Paris
http://www.notredamedeparis.fr/