architecture blue clouds coruña downstairs elements estacas eu galicia hand handrail nature ocean rail roches rock rocks saavem sky Spain stairs step steps water down downward empty escalator escalators floor inside interior levels metal move movement moving progress stair storey transport transportation aluminium amusing bright colored coloured decorative flashing flashing lights fun green lights lit-up on red surface textured yellow concrete going down hand railing long way long way down railing rails safety secure shade shadow steel sunlight a challenge backdrop background business fit fitness glass modern reflection staircase stairrail stairway stone structure structures success training upstairs upwards way to go danger decay ladder old oxide oxidized oxidizing pedro san urban vertical wall white 17th century arch Argolis battlements castle defence defense fort fortress Greece historical landmark Morea nafplio Palamidi Peloponnese power ramparts stronghold venetian walls advice black diamond-patterned handrails high metallic non-slip patterned ribbed sign strong sturdy warning move to the top translucent wood wooden city sea view