Ключевые слова: background, beautiful, beauty, blue, bosphorus, boy, caucasian, distance, equipment, europe, eye, glass, hipster, horizon, istanbul, lake, landscape, lens, look, male, man, nature, observation, one, optical, optics, outdoors, panorama, people, periscope, perspective, scenery, scenic, sea, sightseeing, sky, spyglass, telescope, tourism, tourist, travel, turkey, vacation, view, viewer, viewing, viewpoint, watching, water, young,