Avebury's the site of a large henge and several stone circles surrounding the village of Avebury in the English county of Wiltshire. It's one of the finest and largest Neolithic monuments in Europe dating to around 5,000 years ago. It's older than the megalithic stages of Stonehenge, which's located about to the south, although the two monuments are broadly contemporary overall. It lies approximately midway between the towns of Marlborough and Calne, just off the main A4 road on the northbound… (More on Avebury)