It has been a really big weekend for Stonehenge. Not only did it get the ultimate privilege of appearing in part one of the Doctor Who finale, it is also the Summer Solstice. Stonehenge doesn't normally entertain visitors but it makes a special exception for the longest day of the year. When Stonehenge throws a party it doesn't do it by halves, roughly 20,000 people were there last night to watch sunrise over Stonehenge on the Summer Solstice.
It seems that the first parts of Stonehenge were built about 3100 BC with the stones going up around 2500 BC. The site has been a burial ground at various times. As the people who built it left no records no one really knows why it was built. People seem to think that Stonehenge was built to mark the summer solstice hence the big midsummer party but evidence points to celebrations of the winter solstice in ye olden days.
I'm going to guess that this is because The Big Stoney is getting on a bit and doesn't like the cold so much so it's moved it party to the summer. Well why not, if you're a 4500 year old prehistoric monument that no one really understands who's going to argue?