The Great Pyramid is slightly lopsided. A study on the original size of the Great Pyramid's footprint, by Glen Dash Research Foundation and the Ancient Egypt Research Associates has revealed that the west side of the Great Pyramid of Giza is marginally longer than the right side.
Architectural marvels which stand as an enduring testament to ancient Egyptians' building skills, the three largest pyramids of Giza, on the outskirts of the country's capital, Cairo, are nearly 4,500 years old. The Great Pyramid, which is also known as the Pyramid of Khufu and the Pyramid of Cheops, is the largest of the three and the oldest. It is also, apparently, a tiny bit lopsided.
"[Archeologist Mark Lehner] found the casing stone's leading edge worn back, so he looked for an etched or cut line in front of the casing stone to locate its original edge. Lehner also looked for telltale markings on the platform, including places where the surface of the platform had been subtly worn or eroded by the now missing casing stones. In total, Lehner identified 84 points along 155 meters (508 feet) of the pyramid's 920-meter (3,018-foot) periphery...No direct evidence of the original corners remains."
"The data show that the Egyptians possessed quite remarkable skills for their time," says Dash. "We hope to eventually figure out how the Egyptians laid out the pyramid with such precision, and in doing so hope to learn much about the tools and technology they had at their disposal."