Another form is the menhir, a simple upright stone usually placed with others to form a circle, as at Stonehenge and Avebury in England, or a straight alignment, as at Carnac in France.

另一种史前柱，这一块与其他直立块放一起组成一个圆圈直立碑，如英格兰阵和爱扶倍利，或排成直线，如法国卡尔纳克。