Ключевые слова: ancient, architectural, architecture, blue, buddhism, building, central, chinese, citadel, city, cultural, culture, decoration, design, destinations, east, emperor, entrance, famous, forbidden, fort, gate, gatehouse, green, heritage, historic, historical, history, hue, imperial, lake, landmark, local, magnificent, majestic, national, old, palace, place, purple, restore, roof, symbol, traditional, travel, trees, vietnam, vietnamese, wall,