In south-western Peru, on a plain called Cajamarquilla is the band of holes. Running for about a mile across the barren rock is this line of holes of varying depths and sizes, with occasional clear gaps, for which locals and archaeologists have no explanation. They have guessed at grain storage and burial sites, though neither theory has held up to scrutiny. Information and pictures and be found here. What’s your theory? And don’t miss these Peruvian mysteries previously posted on Google Sightseeing. Thanks to Remko Jansen and Andrew.