ancient architecture bothy construction England Great Britain home house hovel mediaeval old reconstruction roof straw Sussex thatch tied traditional wall woven building dormer elements english historical sash storey tiles town upper window Alley alleyway Andalucia flagstone path pavement slope Spain spanish steps stone urban village white arch art blue classic design frame gable glass grid order palace pediment sky yellow apartments balcony carved city decorative elegant homes houses madrid ornamental ornate townhouses brick chimneys cobblestone cottages road rural street terraced Thatched windows passage passageway whitewash Catalan catalonia Catalunya lamp lane plaster acropolis Athens buildings Byzantine centre church citadel domes Greece Greek parthenon site world heritage