In all the inner city districts you have to pay for parking and there is a maximum time of 2 hours. You can risk getting a fine which would be € 21,-- for the whole day or park in front of our bed&breakfast in the 22nd (Schlenthergasse 17) district. We can the take you to the apartment with our car (5 minute drive).
Take the train S7 to Wien Nord/Praterstern. There change to subway line U1 and get off at Vorgartenstraße. From there it is a 150m walk. Look for a pink house on the left side.