Ключевые слова: a monument to joseph haydn, austria, austrian composer, austrian music, church, church in austria, church in europe, church in vienna, composer, composers of vienna, hiking in vienna, joseph haydn, monuments in austria, monuments of vienna, sights of austria, sightseeing austria, the musicians of austria, the musicians vienna, the sights of vienna, the streets of vienna, the viennese classical school, vienna,