arch arches arching architectural architecture bedrock brick-walls bricks brickwork colors colours formation heritage historic Historic site kiln kilns light lime-kilns park patched patchwork repairs rock rock-work rocks rubble ruins shadows stone stone-wall stone-work stones structure sunlight surfaced surfaces surfacing texture textured textures variations varied vegetation wall walls historic-site stairs steps trees wooden-steps Amman ancient antique arabia arabs archaeological Asia blue capital citadel city classical day east empire famous history jordan landmark middle monument monumental museum old order past period religion Remains roman ruin Sacred sanctuary site sky temple time urban column Corinthian exterior Greek Hercules pilar stylized sunny travel