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A prehistoric monument consisting of a circle of stone is called a henge. Stonehenge is probably the most famous henge in the world. The 5,000-year-old stone circle became a World Heritage Site in 1986 but, despite years of research and study, the reason behind its construction remains a mystery.

由一圈石頭組成的史前遺跡被稱為圓石陣。巨石陣可能是世界上最著名的圓石陣了。這個享有5000年歷史的巨大石圈在1986 被列入世界文化遺址。不過盡管多年的研究和考察，巨石陣建造的原因仍舊是個謎。