Answer: When two or more lines cross each other in a plane, they are called intersecting lines. The intersecting lines share a common point, which exists on all the intersecting lines, and is called the point of intersection.
Answer:
Personally, its a form of art and its special and unique. I would say it depends on who created the artwork. I cant speak for all the people creating this art.
I believe it is Gothic. Gothic consisted of abnormally high ceilings, large stained glass windows, and peaked roofs. This is what Notre Dame consists of. Thank you and have a wonderful day.