We will be in Vienna on August 23 for about 10 hours - a layover on the way from Chicago to Russia. We are bringing our two kids with us - 6 yo and 8 yo. I was in Vienna last year and know the city pretty well but I am not 100% sure on what to do with the kids. I was thinking Stephandom (sp?) and Pratter (sp?). Any other ideas? Thanks in advance!