Daily: 7.30 am - 8 pm
Wikipedia https://de.wikipedia.org/wiki/Grazer_Burg
More information at Graz tourism website http://www.graztourismus.at/en/see-and-do/sightseeing/sights/burg--double-spiral-staircase_sh-1240
Phone +43 316 8075 0
Address Hofgasse 15, 8010 Graz, Austria
Coordinates 47°4'20.141" N 15°26'33.746" E