York has been defended by walls since Roman times, and this walk strings together six places around them: the Multangular Tower, York Minster, Clifford's Tower, Micklegate Bar, the Shambles and Walmgate Bar.
Each stop is a moment in the city's story, from a Roman fort built around 71 AD to a siege in 1644.
Christopher Nolan's Dunkirk (2017) was shot on the beach at Dunkirk itself, then on a Dutch lake off Urk, at Weymouth harbour and Swanage station in Dorset, and on a clifftop in California.
Five stops follow the soldiers' beach, the little boat that sets out from Weymouth, the pilot's cockpit and the train home. These are filming sites, so some pins mark the area rather than the exact spot.
