Discover the hidden history of Newark’s past as a series of popular walking tours make their return this weekend. The tours, which start this Saturday (April 13) and run weekly until October, are organised by the National Civil War Centre and Newark Museum, and run by Newark and Sherwood District Council. The first tour, ‘Besieged But Never Beaten’, offers the chance to discover Newark’s crucial role in the British Civil Wars and to explore some of the town’s highlights. The second tour charts the tale of ‘Newark Through Time’ and is filled with intriguing stories of Anglo Saxon, Medieval, Geo…