Just over a decade ago, a team of explorers were working on an exploration and survey mission off the western coast of Cuba when their sonar equipment picked up a perplexing series of stone structures lying some 650 meters below the surface.
Just over a decade ago, a team of explorers were working on an exploration and survey mission off the western coast of Cuba when their sonar equipment picked up a perplexing series of stone structures lying some 650 meters below the surface.