Moray

Moray (Quechua: Muray) is an archaeological site in Peru approximately 50 kilometres northwest of Cuzco on a high plateau at about 3,500 metres and just west of the village of Maras [1]. The site contains Inca ruins, mostly consisting of several terraced circular depressions, the largest of which is approximately 30 m deep [1]. As with many other Inca sites, it also has an irrigation system [1]. The purpose of these depressions is uncertain, but their depth, design, and orientation with respect to wind and sun creates a temperature difference of as much as 15 °C between the top and the bottom [1]. The wide temperature differences in the terraces have created microclimates, similar to what is achieved in greenhouses in modern times [1].