Carlisle Castle, Cumbira
Border fortress. Keep constructed in early 12th century. Elaborate wall-carvings by prisoners in small cell. Complete castle interiors stone floors and walls. Spiral staircase in the keep. Dungeons. Cumbria. Impressive and forbidding, Carlisle Castle is a formidable fortress. From 12th century. Battlements added in 16th century. Mary Queen of Scots was confined here.