2013-04-16 — /travelprnews.com/ — Gallery, seminar room, pop-up store? All at the same time? Or something completely different?  The Altstadt Vienna now offers a “Free Space”, where the only thing that counts is what clients want. It is equally capable of becoming a creativity workshop, as it is a pop-up store for design-ware. Level_41 is the perfect… Read the full press release