Ranbir Kapoor is currently shooting in the romantic city of Vienna in Austria. As we all know Ranbir and Katrina Kaif are very much in love. More often than not we keep hearing of Kat dropping in on RK's film set to spend some quality time with him and she did just that in Vienna recently. The actress caught up with her boyfriend and then they took a romantic walk together on the streets of Vienna. A picture of them walking together has been leaked online.