Avebury, UK

Although not as famous as the nearby Stonehenge, the henge of Avebury is larger and older; dating back to around 5000 years ago. The standing stones are arranged in a circle with a 400m diameter, on a raised piece of land which has a deep external ditch, and surrounds the tiny village of the same name.

It is one of the largest Neolithic monuments in Europe but what’s really cool about Avebury is that, unlike Stonehenge, you can walk right up to and around the stones. In fact, in a move that would probably have upset those who assembled the stone circle, the A351 road cuts straight through the middle. Just watch out for the sheep droppings. Here's their web site and here's the wikipedia article. Their webcam used to be here but doesn't seem to be working any longer. Maybe it'll come back.

Slide Show

PS. This may look like a duplicate of the Avebury entry on Googlesightseeing but that's because I submitted that.