An arrangement of stones in Wiltshire in the south of England (near Salisbury), that was built by pagans years and years ago before they had trucks etc to carry the rocks. According to superstition anyone who has tried to move or remove the stones has died. Also supposedly you can't count them.
Lots of tourists go there every year and there is a talking guide thing (on headsets) that you can listen to as you walk around. Also they have pagan festivals like Summer Solstice there every year.
Ben: Where shall we go today?
Sarah: Let's go to Stonehenge!