The correct answer is "These structures were constructed in many areas of the world by many different cultures". Some of the most famous megalithic stone structures around the world are:
- Stonehenge in England
- Dolmens of North Caucasus in Russia
- Drombeg stone circle in Ireland
- Rujm el-Hiri in Israel
- Carnac Stones in France
- Taulas of Menorca, Spain
- Rollright Stones in England
- Callanish Stones in Scotland