Ключевые слова: background, binocular, blue, bulgaria, city, coastline, coin, destination, distance, distant, europe, holiday, horizon, landmark, landscape, lens, look, magnify, metal, nesebar, nessebar, observation, operated, optical, outdoor, resort, scope, sea, seaside, sight, sightseeing, sky, skyline, spyglass, summer, surveillance, telescope, telescopic, tour, tourism, tourist, town, travel, urban, vacation, view, viewpoint, vision, visual, water,