Stone Circles are monuments made up of large stones arranged so that they are standing in a circle. It is believed that there are over 1,300 stone circles in the United Kingdom. They are a fascinating reminder of our ancient ancestors. But who built these stone circles and why are they there? How did ancient people build these circles using such giant stone blocks? This book provides all the information you need to know about stone circles in a clear and simple way, and highlights the most famous stone circles in the United Kingdom, such as Stonehenge, the Ring of Brodgar, Calanais and Avebury. Part of the Prehistoric Britain series.