CHICHEN ITZA,MEXICO

The best known construction on the site is Kukulcan's Pyramid.a square-based, stepped pyramid that is 75 feet tall. This pyramid was built for astronomical
purposes. This causes seven isosceles triangles to form imitating the bodyof a serpent 37 yards long that creeps downwards until it joins the huge serpent's
head carved in stone at the bottom of the stairway.