A severe drought impacting Brazil has revealed an array of dazzling ancient rock carvings that depict human faces. The wondrous glimpses into the distant past are reportedly located along recently exposed portions of the Rio Negro shore near the city of Manaus. Believed to be around 1,000 to 2,000 years old, the peculiar carvings originally came to light back in 2010 when the region was struck by a similarly difficult drought. This year's dry spell, however, has been even more extreme, causing the Rio Negro to drop a staggering 50 feet and, in turn, uncovering a bevy of previously unseen faces that researchers are now studying with the hopes of getting a better understanding of their mysterious origins.
Check out a video showcasing the curious carvings and find out more on this story at the Coast to Coast AM website.