* Astronomy

During the Inca Empire, the Inti Raymi was the most important of four ceremonies celebrated in Cusco, as related by Inca Garcilaso de la Vega. The celebration took place in the Haukaypata or the main plaza in the city.
The Inti Raymi ("Festival of the Sun") was a religious ceremony of the Inca Empire in honour of the god Inti, one of the most venerated gods in Inca religion. 
Read more

Inti Raymi - Festival of the Sun - Cusco, Peru - Incan Dance Spectacle