Here’s what you’ll learn when you read this story:Archaeologists in Poland discovered 5,500-year-old tombs dubbed “Polish pyramids.”The oversized graves feature earthen mounds in a trapezoidal shape, some stretching 656 feet in length. The new discovery of uniquely shaped “Polish pyramids” from 5,500 years ago highlights the distinct way early European agricultural societies buried their dead. To locate the tombs after the initial discovery, archaeologists employed aerial laser scanning followed by on-the-ground excavation. While the tombs rarely reach taller than 13 feet, the sheer size and design make them a distinct sight in Poland. While no such skeletons were found in the most recent tomb discovery, archaeologists remain hopeful they can locate grave goods still buried nearby, most likely axes and pottery.