Ключевые слова: amphitheater, analog filter, ancient, ancient amphitheater, ancient monument, ancient roman empire, arena, big, circle, concept, croatia, croatian, empire, exterior, famous, famous object, greenery, historical, history, istria, landmarks, mediterranean, monument, monumental, object, people, place, pula, pula arena, pulska arena, roman architecture, roman empire, ruin, ruins, scratches, seasonal, shape, stone, stoned, summer, sunny, symbol, travel, travel destination, travel guide, travelers, travelling, trees, weather,