abbaye-aux-hommes abbey andrew of rupecanina angel anglo-saxon architecture antiquarian arch architecture of normandy benedictine british national grid reference system bury st edmunds byzantine empire calabria campanile canterbury cathedral cappella palatina castle cathedral chancel cloister county meath dalmeny david i of scotland dome dublin castle dunfermline dunfermline abbey durham cathedral edinburgh castle edward the confessor ely cathedral encastellation england europe flying buttress fortification franks gilding gothic architecture groin vault hauteville family herefordshire ireland jedburgh jedburgh abbey keep kilpeck kirkwall knight leuchars lincoln cathedral lincolnshire macbeth of scotland masonry mausoleum mdina messina molise monastery monreale mosaic motte-and-bailey near east new romney normandy normans opus gallicum oxford castle palazzo dei normanni palermo parish peterborough cathedral pinnacle pyrford raviscanina robert guiscard rochester castle romance languages romanesque architecture rutland saint margaret of scotland san giovanni degli eremiti saracen scotland sculpture sicily southwell minster st athernase church suffolk surrey swords castle the pale thomas rickman tower of london trim castle venosa viking wales wells cathedral westminster abbey wikimedia commons william iron arm winchester cathedral