... In the sunken courtyard of the Tiwanaku's Kalasasaya temple.
Tiwanaku, a UNESCO world heritage site, is an important Pre-Columbian archaeological site in western Bolivia. Tiwanaku is recognized by Andean scholars as one of the most important precursors to the Inca Empire, flourishing as the ritual and administrative capital of a major state power for approximately five hundred years. The ruins of the ancient city state are near the south-eastern shore of Lake Titicaca in the La Paz Department, Ingavi Province, Tiwanaku Municipality, about 72 km (44 miles) west of La Paz. Reference Wikipedia.