The ancient structure famous for its alignment with the stars is Stonehenge, located in Wiltshire, England. This prehistoric monument consists of a circle of standing stones that are arranged in a way that aligns with the summer and winter solstices, as well as other astronomical events. Archaeologists believe it served a religious or ceremonial purpose, possibly related to ancient astronomical knowledge. Stonehenge attracts tourists and researchers alike, leading to ongoing debates about its exact purpose and the methods used to construct it thousands of years ago.