It’s the wine. It’s not just the small houses with baroque detailing, or the cobblestoned streets with old trams that wind their way up the Vienna Woods foothills, that make Grinzing the most popular of all of the former villages that have been absorbed into present-day Vienna. The city has by some counts more urban vineyards than anywhere else in the world, and Grinzing’s famous Heurige (wine taverns) draw big crowds. The proprietors of Zum Martin Sepp, across from the parish church, welcome visitors to their cozy courtyard and tavern rooms. Guests enjoy Austrian specialties such as the Kaiserschmarrn pancake dessert and drink house grüner veltliner and other wines, while swaying to musicians wielding the signature folk accordion and playing old Viennese drinking songs.