Stonehenge, a rock circle, is one of Britain's greatest mysteries. Every year it （接待，接受） more than 750, 000 visitors. People like to go to this place in June to see the sun rising on the longest day of the year.

    For many years, historians thought Stonehenge was a temple where ancient （领袖） tried to communicate with the gods. Another popular （意见，想法） is that Stonehenge might be a kind of calendar. The large stone were （放） together in a certain way. On midsummer's morning, the sun shines directly into the （中心） of the stone. Other people believe the stones have a （医疗的） use. They think the stones can （阻止） illness and keep people healthy." As you walk there, you can feel the （力量，精力）from your feet move up your body, "said one visitor. No one is sure what Stonehenge was used for, but most agree that the（位置，地方） of the stones must be for a special（目的） .