Notre Dame de Paris is a Gothic cathedral constructed between 1163 and 1345. It was one of the first buildings to use flying buttresses, a technological advancement in construction that allowed builders in the gothic style to build walls that were taller and thinner, creating grander interior spaces, and allowing the use of more and grander windows, including the famous rosette windows found in gothic cathedrals. The flying buttress, the pointed arch (segmented arch) and the ribbed vault were signature architectural elements of the gothic style making the building appear lighter and taller.
It is located on the Île de la Cité in Paris, France. It is the seat of the Archdiocese of Paris, and is a UNESCO World Heritage Site.
Read more about Gothic: A Revolution of Light and Space