I was taken by the patterns left by the weathering in some of the stones on lower courses of the west front of Durham Cathedral. The stones of the west front are of corse the ones which take the full force of rainstorms.
I’ve no idea if these stones are from the original build of the cathedral, but if so they will have been there the best part of a thousand years. It would also make them some of the furthest-travelled stones in the main structure of an Englsh cathedral: Durham is built of Caen stone, Jurassic limestone from Normandy.
It also gives me an excuse for posting views of the river and cathedral from the two traditional viewpoints. From the Prebends Bridge over the river, showing the two mills below the cathedral; and from the mill on the left bank of the river, across the weir between the two mills.