pic from Xochicalco (MEX)

Xochicalco is a historic site of ancient Aztecan culture.
the name Xochicalco mean the house of flower .it locates south-east of Mexico city.
around the site, there is nothing beside mountain.
in the center of the site , there are one main building called The Piramid of Serpent , where there are serpent sculture everywhere.and on that piramid there is a sacrified place, where they used to sacrify human heart .
on the day of my visit, there are many actors there.
later, i heard the guide said that , there will be a sacrified ceremony on the next day and the actors are doing their rehearsal.