ancient architecture buttress checkered chequered christian church cobblestone elements England english flint gravestone graveyard Great Britain historical old religion religious stone Sussex tomb tombstone tower window Abbey building cathedral Dorset ornamental sandstone uk united kingdom worship arch decorative Malmesbury mediaeval ornate pillar wall drainpipe gargoyle pipe arched arches carved double glass pair stained stonemasonry two wales welsh Chilterns churchyard flood gate Gravestones pool water winter bell Byzantine chapel cross Greece Greek little orthodox small tiny ceiling light art color colour Hereford Herefordshire quality Agia Trias archaeological archaeology Aya Trias basilica cyprus damage destroyed destruction history Remains ruins Sipahi site