Newark Castle, standing proudly on the banks of the River Trent for nearly 900 years, was originally built in the mid-12th century by Alexander, Bishop of Lincoln as a magnificent Norman palace. The castle's gatehouse represents the most complete example of its type in England, recognized by Historic England. Its storied past includes royal associations, particularly with King John, who spent his final days here in 1216. The site has served as a court, garrison, market, and coal wharf through the centuries, playing a significant role in the British Civil Wars. Surrounded by Victorian-era gardens laid out in the late 19th century, the Grade I-listed Scheduled Ancient Monument is currently undergoing transformative restoration through the Gatehouse Project, with planned reopening in late 2026 featuring enhanced galleries and improved visitor facilities.