Usually 1 referee and 2 referee assistants. Hope this helps!
The reason that they have done this (this is a theory created by Egyptologists) is so the dead pharaoh could symbolically climb the sides of the pyramid, make his way to the sky, and live forever. The pyramid also represented the rays of the sun.
B. Rose Window
Gothic pieces can be identified easily with rose windows as well as pointed/onion-shaped archways.
Happy Studying ;)