A frosty morning at Avebury henge
Avebury henge in a cold, frosty morning. Copyright © Myke Lyons 2005 – Creative Commons Attribution-NonCommercial (CC BY-NC) 2.0 Generic.

Avebury is one of the most important and famous henges in Britain, only second to Stonehenge. It consists of an enormous ditch, with an external bank and several internal areas delimited by big standing stones, among other elements. Built during the late Neolithic, it sits within a very rich archaeological landscape, near Windmill Hill causewayed enclosure and not far from other enclosures such as Knap Hill, Rybury or Marden henge. It is open to the public as part of the UNESCO World Heritage site of Stonehenge, Avebury and associated sites.