12th Century ancient architecture christian church Cornish cornwall England english Grade I Great Britain historical old religion St Enodoc steeple stone graves graveyard religious roof shadow sunlight Sussex tiles tombs tombstones tower background building dark Hopperstad mediaeval medieval norway norwegian stave tar tarred texture Vik wooden elements windows decorative ornamental ornate pillars turret carved dragon landmark spire tourism tourist attraction weathercock gables sea dragon seadrake carving