Stonemasonry is the craft of making things out of stone. People who do this are called stonemasons. Their crafts have existed since the start of civilization. They have made important buildings and structures out of stone. This stone comes from the earth. Stone has been used to build many long-lasting things. These could be monuments, artifacts, cathedrals and cities. These can often be seen in many cultures. Some monuments made out of stone include, the Egyptian pyramids and the Greek Parthenon. Stonehenge is also a famous stone building.