In the morning, I took the Schlossbergbahn up and down Schlossberg. I then took the Grazer Schlossberg-Grottenbahn, a fun train ride inside the tunnel.
After that, I took a bus to the Arnold Schwarzenegger Stadium. Arnold Schwarzenegger used to exercise in the gym here. But the stadium was closed, so I could not find that gym or his museum.
In the afternoon, I visited the Landeszeughaus: Armory of Styria.
I then followed a walking tour around the old town.
In the evening, I attended at Mahler concert by the Gustav Mahler Youth Orchestra at the Grazer Kongreß Stefaniensaal. They played Mahler's Symphony No. 5. It was a good performance.