For thousands of years, scientists from around the world have tried to understand how the Egyptians designed and built the Great Pyramid of Giza – the last remaining of the seven wonders of the ancient world. Now, an architect and researcher at the Norwegian University of Science and Technology (NTNU) says he has the answer to this ancient puzzle. According to Ole Bryn, the Great Pyramid’s building grid was developed based on the prime number seven – and the core of Khufu’s 146.6 meters high monument is likely a step pyramid. Khufu’s Great Pyramid, located on the Giza Plateau, was…