Zenithal passages of the Sun at Monte Alban, Teotihuacan and Xochicalco

This article is a joint effort of recognition of three Mexican World Heritage sites that share in their past the important legacy of knowledge of skywatchers in ancient Mexico.

Zenithal passages of the Sun at Monte Alban, Teotihuacan and Xochicalco
Zenithal steps of the Sun. Image by Adina Voicu from Pixabay