Ключевые слова: architecture, austria, austrian, building, capital, city, collection, colorful, cooperation, country, day, europe, european, exterior, flag, flags, globalization, group, headquarter, historic, hofburg, house, hq, international, landmark, line, multicolored, multicultural, national, osce, outdoor, palace, security, set, state, street, symbol, together, travel, union, vienna, waving, wien, wind,