Kenko or Qenqo, in Quechua Q'inqu ('labyrinth') is an archaeological center located 2 km from the city of Cuzco, in Peru at 3580 meters above sea level.
It is not exactly about ruins, because Qenqo is one of the best examples of that Inca seal: the great rock carved in situ. It is an outcrop of eroded, fissured limestone, all cleverly carved to utilize the natural shape of the rock. To the north we find an amphitheater with 19 niches built around the base, all that remains of a high wall centered on a tall rock. Perhaps it was a phallic symbol or a seated puma (the conquistadores erased its original form) and was evidently the focus of some religious cult.
Qenqo was a Waca, a sanctuary. Inside its caves we find large niches and what looks like an altar. Early chroniclers mention caves around the city where the mummies of minor royalty were kept in niches along with gold and precious items. This was almost certainly one of them.
Some stone steps lead to the top of the rock, where there are more enigmatic carvings: the zigzag channels (p'aqchas) that give the place its name, which were used to carry chicha, or perhaps sacrificial blood, for of divination.
At the end of this immense rock, there are several pieces that were used in astronomy activities that calculated the next festival of the sun. They were facing the direction of sunrise.