Tunnels under Cusco Early chroniclers reported that by far the greatest amount of treasure in Cusco was in the Sun Temple (Koricancha). However, it disappeared before the conquistadors could get hold of it and melt it down. Despite the use of various forms of persuasion, the Spanish never found this horde. A team of investigators from Spain, using modern technology of radar and software producing 3D images, have suggested that there are tunnels connecting the former Incan temples (over which colonial churches were built) to Sacsahuaman. They have discovered the existence of huge tunnels over 5 metres deep under the...