Definitely the Süd Mall - https://intravel.net/vienna/shopping/torgovy-centr-scs-100 Located in the suburb of Vösendorf, just a few kilometers from Vienna, it is the second largest in Europe! Here you will find everything - many shops for both adults and children, restaurants, food courts, playrooms for children and cinemas. In my opinion, this is an ideal place for shopping and relaxation. By the way, the road to the shopping center takes about 30 minutes, so be sure to visit.