Ключевые слова: 21, beautiful, bird, blue, celebration, charity, compassion, day, decoration, design, dove, element, faith, freedom, greeting, holiday, hope, icon, international, international day of peace, leaf, modern, nature, peace, peace and love, peace day, peaceful, pigeon, plant, poster, september, shape, sign, silhouette, sky, spiritual, symbol, tradition, traditional, white, wing, world, world peace day,