Ключевые слова: adult, asphalt, athlete, athletic, beginning, belgrade, challenge, city, city life, city street, compete, competition, copy space, crowd, crowded, day, drone, endurance, energy, europe, event, exercise, fitness, foot, from above, group, group of people, health, jog, jogging, leg, lifestyle, man, marathon, motion, outdoors, person, race, road, run, runner, speed, sport, sprint, start, street, summer, training, woman,