How were the pyramids built?

The pyramids were built using skilled labor, simple tools, and ramps. Workers quarried limestone and granite, transporting blocks with sleds, boats, and ramps. The most accepted theory suggests they used straight or zigzagging ramps to move stones upward. Skilled laborers worked in teams using copper tools, ropes, and levers. The Great Pyramid of Giza took around 20 years to build, showcasing engineering and organization.