ancient arches architecture battlements building castle city david defence fort fortifications historical interior Israel Jerusalem old ruins security stone tower walls arch art blue classic design frame gable glass grid house order palace pediment roof sky window yellow belltower christian church churchyard clock Devon elements England english Great Britain religion religious worship flint peace rural Sussex bell Byzantine chapel dome Greece Greek little orthodox small tiny defend defensive fortification landmark limestone secure strength strong wall Abbey column Historic site mediaeval medieval Monmouthshire pillar Tintern Abbey wales dormer home sash storey tiles town upper acropolis Athens buildings centre citadel domes homes houses parthenon site world heritage