How are the rocks arranged in Stonehenge?

Stonehenge consists of a circular arrangement of large standing stones, known as sarsens, which are surrounded by a circular earthwork. The sarsens are arranged in a pattern of post-and-lintel construction, with horizontal stones (lintels) resting on vertical stones (posts). Inside the circle, there are smaller bluestones arranged in an inner oval. The precise arrangement is thought to have astronomical significance, aligning with the solstices and indicating its importance in ancient rituals.