The workshop will take place at the Austrian Institute of Technology located at the
Tech Gate Tower
The nearest underground station is Kaisermühlen - Vienna International Centre of the U1, which is where the photo above was taken from. To get to the entrance follow the green line (marked 'Fußweg') in the overview map (below).
After entering Tech Gate, walk past the reception desk and follow the signs to the tower elevators on the left side (behind the turnstiles). Don't use the elevators to the right (before reception desk). These lead up the 'Tech Gate', not the 'Tech Gate Tower'. The meeting venue is located on the 5th floor.