graz - wisteria plant in full bloom with exterior view of schloss eggenberg in graz, styria, austria

purple botanical bloom flora flower wisteria plant selective focus blooming blossom windows heritage shloss column tower pillar tourism architecture travel destination courtyard facade history tourist eggenberg urban castle landmark schloss baroque palace european renaissance museum austria graz monument austrian unesco world site historical steiermark europe architectural historic sightseeing styria ornate green garden landscape