The Notre-Dame Cathedral, on the ‘le de la CitÈ, an island in the Seine River that is the original birthplace of Paris. The cathedral is almost nine hundred years old.A little less 200 years were necessary to build the " cathedral of the Cathedrals ". Maurice de Sully, bishop in 1160, decided the construction of imposing building. Theatre of the famous novel of Victor Hugo " Notre Dame de Paris ".

Under the square fronting Notre-Dame lies Europe's largest archeological crypt. Here are foundations and buildings vestiges dating from the gallo-roman period to the 18th century.