Berwick's town walls are a sequence of defensive structures built around the town of Berwick-upon-Tweed in England.
Wikipedia https://en.wikipedia.org/wiki/Berwick_town_walls
Official website http://www.visitnorthumberland.com/historic-sites/berwick-elizabethan-town-walls
Address TD15 1, United Kingdom
Coordinates 55°46'22.227" N -2°0'6.237" E