It is accessed by a double jamb doorway, the building is known as Torreon, of finely carved blocks, was used for ceremonies related to the winter solstice on June 21 in Machu Picchu.
One of its windows shows traces of having embedded ornaments, which were uprooted at some point in its history, destroying part of its structure, in addition, there are traces of a large fire in the place.
In times of the Incas, only the priests and the Inca used these enclosures.