Above: The Great Trilithon, centre-right in the image above, was the largest of the 5 trilithons. Just one upright remains. The other upright lies broken on the ground, alongside the fallen lintel (image © David Fowler)
10 m – the original length of the fallen upright from the Great Trilithon (Stone 55).
9 m – the approximate length of the tallest stone still standing, the remaining upright of the Great Trilithon (Stone 56).
7 m – the height this upright reaches above ground.
2.4 m – the depth this same stone reaches below ground.
35 tonnes – the weight of the largest sarsen stones.
5-6 metres – the average length of the sarsen trilithon lintels.
5 metres – the average height of the uprights of the sarsen circle.
20 tonnes – the average weight of these uprights.
3 metres – the average length of the sarsen circle lintels.
3 tonnes – the weight of the largest bluestones.
40 tonnes – the weight of the heel stone.