Japanese researchers are working on creating a 3D image of the pyramids to discover how they were built, The Japan Times reports. Led by archaeologist Yukinori Kawae from Nagoya University, they used laser beams and drones to measure every stone’s location and shape. A total of seven pyramids were measured and “the team plans to gather data that can be the basis for future academic study and reveal how the pyramids were built in a scientific way,” Kawae said.