Under the Mayan sky

I would have loved to watch the stars from this beautiful Mayan observatory at the Coba ruins. But the entrance was blocked, so I had to stay outside.
From their constant observation of the heavens, Mayan astronomers were able to plot virtually perfect time cycles. They knew all about the rotation of Venus and about lunations, the basic elements for creating a calendar.
The Mayans considered time cyclic. What happened today, had already happened in the past, and because everything repeated itself, they tried to understand those changes, organizing them and registering them.
Their highly developed and complicated calendar was more precise than the one we use today.