Clause 39 of Magna Carta – ‘No free man shall be seized or imprisoned’ – is the centrepiece of the first UK monument to the 1215 contract to be erected at Runnymede. Writ on Water is an ‘immersive space for contemplation and reflection’ commissioned by the National Trust from artist Mark Wallinger. The title is taken from the epitaph of romantic poet John Keats: ‘Here lies one whose name is writ on water’.

The artwork, at the base of Cooper’s Hill, Runnymede, Surrey, is open seven days a week and is free to enter.