The Stonehenge is a gigantic celestial calendar and probably dates to the era of about 2000 bce.   Many of the stones were dragged from about 50 miles away.  The circle was originally made of wooden posts.   It is one of the most enduring monuments of the British Isles.  Tour buses come here by the dozen.

It was possible for years to walk among the stones but the monument authorities now forbid that.  It does make taking a photo without tourists in front of the stones much easier.