The town suffered Luftwaffe bombing during World War II as the last significant place Germans could drop bombs before returning home, but much is left of the old town, including the original protective medieval wall, of which two-thirds has survived. Of the 18 towers, 11 are left. On the South Quay is a 17th-century Merchant's House, as well as Tudor, Georgian and Victorian buildings. Behind South Quay is a maze of alleys and lanes known as "The Rows". Originally there were 145. Despite war damage, several have remained.