NOTRE DAME DE PARIS
Notre Dame de Paris (French for Our Lady of Paris), also known as Notre Dame Cathedral, is a Gothic, Catholic cathedral on the eastern half of the Île de la Cité in the fourth arrondissement of Paris, France. It is the cathedral of the Catholic Archdiocese of Paris: that is, it is the church that contains the cathedra of the Archbishop of Paris, currently André Vingt-Trois. The cathedral treasury houses a reliquary with the purported Crown of Thorns.
The site of the Notre dame is the cradle of Paris and has always been the religious center of the city. The Celts had their sacred ground here, the Romans built a temple to worship Jupiter. A Christian basilica was built in the 6th century and the last religious structure before the Notre-Dame construction started was a Romanesque church.
Bishop Maurice de Sully started the construction in 1163. The Cathedral was to be built in the new gothic style and had to reflect Paris's status as the capital of the Kingdom France. It was the first cathedral built on a monumental scale and became the prototype for future cathedrals in France, like the cathedrals of Amiens, Chartres or Rheims, just to name the most famous.
It took until 1345 before the cathedral was completed, partly because the design was enlarged during construction. The result is an overwhelming building, 128m long (420 ft) with two 69 meter tall towers (226 ft). The spire, which reaches 90m (295 ft), was added in the 19th century by Viollet-le-Duc. The Notre-Dame Cathedral has several large rose windows, the northern 13th century window is the most impressive. The massive window has a diameter of 13.1 meter.

The frontal west facade features 3 wide portals; above the portals is the Gallery of Kings, 28 statues of Judean Kings, and higher up are the famous gargoyles and grotesques. The spectacular eastern flying buttresses at the east side of the building are 15m wide.