The Pyramids of Egypt are thousands of years old and yet they still continue to fascinate in our modern times. These structures are often surrounded with tales and mysteries to how they were built. The pyramids of Giza remain the most famous; however, there are hundreds documented throughout Egypt. These large tombs were massive and it was believed they took roughly 20 years to construct—all with precise planning, labor, and power. The pyramids of Giza are popular and it is estimated they bring 9 million tourists yearly.