Ключевые слова: aerial landscapes, aerial shot, aerial view, bernina express, bridge, building, cold, drone shot, engineering, express, filisur, forest, frost, frozen, glacier, glacier express, gorge, grisons, historical, landmark, landwasser, landwasser viaduct, mountain, natural, nature, old, railway, road, rural, scene, scenery, snow, stone, stone bridge, swiss, swiss alps, switzerland, top view, tourism, train, transportation, travel, tree, valley, viaduct, view, white, winter, wood,