Silbury Hill in Avebury, Wiltshire is the largest man-made mound in Europe, it compares in height and volume to the roughly contemporary Egyptian pyramids. Probably completed in around 2400 BC, it apparently contains no burial. Though mysteriously important in itself, its purpose and significance remain unknown. There is no access to the hill itself. It is part of the Avebury World Heritage Site. Stonehenge is 16 miles away.
White Caterthun fort in 1994 White Caterthun is one of the most spectacular Iron Age forts in Scotland, facing another prehistoric fortification Brown Caterthun across a shallow valley, both fine examples of the skills prehistoric man possessed in building and engineering. The fort is formed from a pair of stone walls 12m thick and 3m high, and further down the hill can be seen ramparts or defensive earth embankments. Photographer: RCAHMS
Trellech, The 'Harold Stones' are so called because they are said to commemorate the death of three British chieftains in battle with Harold of Wessex. However, they are much more ancient than that, being 3500 years old and erected in the Bronze Age.
This is maybe the oldest house on St Kilda dating from the Iron Age. It's sometimes called the Earth House but the St Kildans called it Tighe an t'sithiche, meaning the House of Fairies - Outer Hebrides