Silbury Hill, UK. Silbury Hill, near Avebury in Wiltshire, is the largest prehistoric man-made mound in Europe. It was created around 2660 BCE and stands 130 feet high, but its purpose is unknown. Despite centuries of study and excavation, it remains one of the most enigmatic of British prehistoric sites.
Cheddar Gorge, Cheddar. Britain's biggest gorge from the dramatic cliffs rising 450ft to the stunning stalactite caverns. This world-famous beauty spot is a National Nature Reserve, reveals many fascinating stories of our prehistoric ancestors, and is an international centre for caving and rock climbing.