Stonehenge (a famous stone circle for context)

Stonehenge is an ancient prehistoric monument in England, composed of a circular arrangement of massive standing stones. Built around 3000 BC to 2000 BC, its purpose remains partly speculative but is believed to have served as an astronomical observatory, ceremonial site, or burial ground. The stones are carefully aligned with the movements of the sun and moon, indicating their significance in early religious or calendrical practices. Its construction demonstrates advanced engineering skills for its time, and it continues to be a symbol of prehistoric ingenuity, attracting researchers and visitors interested in early human history.