Health status didn’t quite allow for a full itinerary around Alnwick, but we did get a chance to visit its most impressive second-hand bookshop. Located in a former train station, Barter Books is incredibly quirky and charming, with endless rows of books, cozy fireplaces, and a charming cafe. You can also see the original ‘Keep Calm and Carry On’ WWII poster that was uncovered in the shop in 2000, and subsequently became an international phenomenon.