How was the Great Pyramid Built?

The Great Pyramid in Egypt is typically known as being very large and sometimes it’s hard to think about how they built this type of monstrosity in their time. While it’s not known exactly how they did it, scientists suspect that they had a very good system worked out that had a ramp going around the pyramid to haul things. While this was the case, they may have also had pulley systems to aid lifting things up and down.