Archaeologists recently made a remarkable discovery of a temple dating back 4,000 years in northwestern Peru. The ceremonial temple had been covered in sand and was unearthed at the request of local authorities, Popular Mechanics reported. At first, the only structure visible to the experts was walls, but slowly they delved deep and encountered a mix of structures that indicated the presence of a temple, Popular Mechanics reported. The team also found the skeletal remains of three adults tucked between the temple walls. “We may be facing a 5,000-year-old religious site that constitutes an arch…