At 455 feet tall and comprising 2.3 million stone blocks, the pyramid is the largest ever erected. Scientists don’t know how it was built, but the new space may provide answers.
Using a type of scientific imaging, scientists were able to determine that an area near the top of the pyramid is hollow. They believe the area might have been used as a ramp for carrying stone blocks—which weighed an average of 2.5 tons to 15 tons each—to the top of the structure. Experts plan to send tiny robots into the space through cracks in the pyramid’s walls to investigate further.