Archaeologists unearthed a nearly 3,000-year-old Mayan city in Guatemala — complete with pyramids and mysterious monuments — that reveals new traces of the ancient civilization. The ancient metropolis known as Los Abuelos — Spanish for “The Grandparents” — dates back to about 800 to 500 BC and is believed to be one of the earliest and most significant ceremonial centers of the Maya civilization in Guatemala’s dense Petén region ... Officials said the roughly six-square-mile historic area — named after two human-like rock figures believed to represent an ancestral couple — features “remarkable architectural planning,” including pyramids, sacred sanctuaries and...