Pikillacta (IMAGE) Dartmouth College Caption This is an aerial view of Pikillacta, facing toward the Cusco Basin. Credit Department of Library Services, American Museum of Natural History Usage Restrictions Must credit the Department of Library Services, American Museum of Natural History License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.