Group of a Thousand Columns Along the south wall of the Temple of Warriors are a series of what are today exposed columns, although when the city was inhabited these would have supported an extensive roof system. The columns are in three distinct sections: A west group, that extends the lines of the front of the Temple of Warriors. A north group runs along the south wall of the Temple of Warriors and contains pillars with carvings of soldiers in bas-relief; A northeast group, which apparently formed a small temple at the southeast corner of the Temple of Warriors, contains a rectangular decorated with carvings of people or gods, as well as animals and serpents. The northeast column temple also covers a small marvel of engineering, a channel that funnels all the rainwater from the complex some 40 metres (130 ft) away to a rejollada, a former cenote.