The ruins of the temple of Cacha are in the valley of the Vilcamayu, south of Cuzco. They were described by Garcilasso de la Vega, and have been visited and carefully examined by Squier. The main temple was 330 feet long by 87 broad, with wrought-stone walls and a steep pitched roof. A high wall extended longitudinally through the centre of the structure, consisting of a wrought-stone foundation, 8 feet high and 5½ feet thick on the level of the ground, supporting an adobe superstructure, the whole being 40 feet high. This wall was pierced by 12 lofty doorways, 14 feet high. But midway there are sockets for the reception of beams, showing the existence of a second story, as described by Garcilasso. Between the transverse and outer walls there were two series of pillars, 12 on each side, built like the transverse wall, with 8 feet of wrought stone, and completed to a height of 22 feet with adobes. These pillars appear to have supported the second floor, where, according to Garcilasso, there was a shrine containing the statue of Uira-cocha. At right angles to the temple, Squier discovered the remains of a series of supplemental edifices surrounding courts, and built upon a terrace 260 yards long. The peculiarities of the temple of Cacha consist in the use of rows of columns to support a second floor, and in the great height of the walls. In these respects it is unique, and if similar edifices ever existed, they appear to have been destroyed previous to the rise of the Inca empire. The Cacha temple belongs neither to the cyclopean period of the Piruas nor to the Inca style of architecture. Connected with the strange myth of the wandering prophet of Viracocha, it stands by itself, as one of those unsolved problems which await future investigation. The statue in the shrine on the upper story is described by Cieza de Leon, who saw it.