Avebury is the site of a large henge an several stone circles in the English county of Wiltshire surrounding the village of Avebury. It is one of the finest and largest Neolithic monuments in Europe dating to around 5,000 years ago. It is older than the megalithic stages of Stonehenge, which is located about 32 kilometres (20 mi) 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 A4361 towards Wroughton. The henge is a Scheduled Ancient Monument and a World Heritage Site.