The Newcastle town wall is a medieval defensive wall, and Scheduled Ancient Monument, in Newcastle upon Tyne, England. It was built during the 13th and 14th centuries, and helped protect the town from attack and occupation during times of conflict. It was approximately 3 kilometres (2 mi) long, at least 2 metres (6.5 ft) thick, up to 7.6 metres (25 ft) high, and had six main gates: Close Gate, West Gate, New Gate, Pilgrim Gate, Pandon Gate and Sand Gate. It also had seventeen towers, as well as several smaller turrets and postern gates.