Stonehenge may have been an astronomical calendar.
Stonehenge is a circular ancient monument. composed of huge, roughly cut stones, standing on Salisbury Plain in Wiltshire. It is believed to have been built during the Late Neolithic Period and Early Bronze Age, around 1800-1400 BC.
Although the monument is no longer intact, it has proved possible to envisage how it once looked from what remains. Scientists have shown that, correctly read, the monument was capable of accurately predicting the eclipses of the sun and moon.