Midweek brings the Graz Art and Wine Festival to the BymarkarkadeThere's a big red barrel at the corner of Gruner and Georgsberg. (Marta Kierkus)Part of the opening night party for the 12th Graz Art & Wine Festival (Graz vollmondertag). (Marta Kierkus)What to expect from the wine festival. (Marta Kierkus)What to expect from the Graz vollmondertag. (Marta Kierkus)What to expect from the wine festival. (Marta Kierkus)What to expect from the wine festival. (Marta Kierkus)What to expect from the wine