Nestled some 2,000 feet beneath the waves off the coast of Cuba lies one of archaeology’s great unsolved mysteries. Some even believe it could be the lost city of Atlantis. This discovery is further proof that what we've been taught in history books is often wrong and what we think we know about humanity’s past is constantly being reviewed. In 2000, researchers from the Canadian company Advanced Digital Communications (ADC) were surveying the waters off the tip of the Guanahacabibes Peninsula when their sonar equipment picked up a strange series of complex architectural structures on the ocean floor.
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