Standing stones are large, upright stones that are often arranged in a specific pattern or alignment. They can be found in various parts of the world and are believed to have been erected by ancient cultures for various purposes, including religious rituals, astronomical observations, or as territorial markers. Some famous examples include the Stonehenge in England and the Carnac stones in France. These stones vary in size and shape, with some standing several meters tall. Many standing stone sites are associated with prehistoric peoples, and they continue to be subjects of archaeological study. Their exact meanings and uses remain a mystery, sparking interest and speculation among historians and enthusiasts alike.