Visitor center at Michaelerplatz in the Hofburg (under the Michaelerkuppel):

Michaelerplatz 1, A-1010 Vienna
Tel: +43 1 533 90 31-0
Email: office@srs.at

opening hours in July
Tuesday to Saturday: 12:30 until 16:00 hrs
Sunday: 9:30 until 16:30 hrs

Entrance and cash desk at Josefsplatz:

Josefsplatz, A-1010 Vienna

closed