The Great Platform was remodelled at least three times before it reached its final dimensions .
The main pyramid B1 - 1 was then built upon the Great Platform , behind the western platform and covering the original central temple .
The Great Platform was remodelled at least three times before Great Platform reached Great Platform 's final dimensions .
The main pyramid B1 - 1 was then built upon the Great Platform , behind the western platform and covering the original central temple .