Berwick Castle is a ruined castle in Berwick-upon-Tweed, Northumberland, England.
Wikipedia https://en.wikipedia.org/wiki/Berwick_Castle
Official website http://www.english-heritage.org.uk/visit/places/berwick-upon-tweed-castle-and-ramparts/
Address New Road, TD15 1, United Kingdom
Coordinates 55°46'26.476" N -2°0'44.237" E