From the airport you take the CAT or the S7 commuter railway to Landstraße/Wien Mitte and then the U4 underground line (direction Heiligenstadt) for one stop to Schwedenplatz. Take the exit "Rotenturmstraße", turn left and then immediately right into Hafnersteig. Alternatively, take the Vienna Airport Lines bus to Schwedenplatz/Morzinplatz. From Westbahnhof (Western Train Station) take the U3 underground line (direction Simmering) for 5 stops to Stephansplatz and then the U1 (direction Leopoldau) for one stop to Schwedenplatz. As the Südbahnhof (South Train Station) is closed due to construction works, the trains end at Wien Meidling. From Wien Meidling take the U6 underground line (direction Floridsdorf) to Längenfeldgasse, change to U4 direction Heiligenstadt to station Schwedenplatz. Take exit Rotenturmstraße, turn left and the into Hafnersteig to the right.