There are hundreds of ushnu in the territory of the former Inca empire, many of them have been excavated and described in archaeological publication. Several have been restored and others are being considered for further research especially under the Qhapaq Ñan carried out by the (Ministry of Culture) in Peru.
Cusco The main square of Cusco roughly corresponding to the modern and was divided by the river Saphi into two sub-squares called Haucaypata (Hawkaypata) or
square of the rest and happiness and Cusipata (Kusipata) or
square of the joy. It was also the limit between
hanan (upper) and
hurin (lower) Cusco. It had an important ritual role and hosted the religious festivals held during the year. This concept is underlined by Zuidema who considers the ushnu as a
gate to the Earth that sucks in the rainwater and the offerings. The presence of the river just under the ushnu allowed this
opening to function properly. In the 17th century the descriptions of the Cuzco ushnu differ enormously from the chronicles of the preceding century. Thus, Guamán Poma de Ayala The ushnu was also an observation point of the Sun. whose center was the
Coricancha (temple of the Sun). This system was composed of a series of ritual imaginary pathways leading outward from Cusco into the territory of the Inca Empire. All along the ceque lines
huacas (shrines, sacred places) were found corresponding to spots of ceremonial, ritual, or religious significance. The system was divided into four sectors towards the four provinces which composed the Inca empire and each province had a given number of lines. The first huaca of the fifth ceque of
Antisuyu was in the main square and was mentioned as
usnu by
Polo de Ondegardo (Spanish colonial jurist, civil servant and thinker). It was finely carved to produce seats, niches, drainage channels, basins, and animal shapes. It is regarded as, possibly, the largest existing ushnu. In the south central part of the plaza stands the ushnu. Its shape is that of a single body slightly pyramidal truncated platform with a square plan and a height of . It has an access through the west side front, formed by a stone stairway with 9 steps, which leads to a trapezoidal opening placed in the center of the façade. A bench with stone walls filled with mortar and a seat made of flat slates can be observed on the northern sector of the platform. The construction process of the ushnu is part of an accurate planning of the plaza. Its walls are double with mud filling inside and their blocks were extracted and transported alternately from the nearby hill and river. Before their placement, the stones underwent rudimentary percussion work in order to adapt them to imitate the typical Cusco stonework. This ushnu appears to be the largest built to the South of Cusco. Its measures are a visible sign of the importance of this settlement. According to the Inka ideology, the ushnu was the conceptual scenario where power and alliances between leaders were assumed and consummated. According to Raffino and colleagues it is more than likely that about one hundred years after the end of the Inca empire, the members of the indigenous rebellion of 1630-1636 used El Shincal and specifically its ushnu to consolidate their power in search of a rehabilitation of indigenous rights. This tends to confirm that during the uprising, the symbolism of the Inca ushnu in the local ideology had not yet ended. == Further reading ==