The stronghold that put both the 'new' and 'castle' into Newcastle has been largely swallowed up by the train station, leaving only the square Norman keep as one of the few remaining fragments. Inside you'll discover a fine chevron-covered chapel and an exhibition of architectural models ranging from Hadrian's Wall to 20th-century eyesores. The 360-degree city views from the rooftop are much better than from the BALTIC's 'Viewing Box' across the water.