Panning down from roof to street level of Notre-Dame de Paris. Notre-Dame de Paris is also known as Notre-Dame Cathedral in Paris. It is a historic Catholic cathedral on the eastern half of the Île de la Cité in the fourth arrondissement of Paris, France. The cathedral is widely considered to be one of the finest examples of French Gothic architecture and among the largest and most well-known church buildings in the world. The naturalism of its sculptures and stained glass are in contrast with earlier Romanesque architecture. An extensive restoration supervised by Eugène Viollet-le-Duc began in 1845. A project of further restoration and maintenance began in 1991.