There is a pyramid of the sun as spectacular as the Great Pyramid of Khufu. The ratio of tower bottom to tower height is exactly equal to the ratio of perimeter to radius.
Pyramid of the sun adopted the 4π formula. When we multiply the height of pyramid of the sun (233.5 feet) by 4π, we can accurately get its circumference: 233.5 x 4 x 3. 14=2932.76, which is only 0.04 feet away from the actual circumference of 2932.8 feet.
The coincidence of pyramid of the sun's design and π value seems to imply that the ancient Mayans had mastered extremely advanced mathematics long before Archimedes discovered π value, and had some basic goals when building pyramids.