In the summer of 2013 I went on a trip Interailling Eastern Europe. The route went: Amsterdam, Berlin, Prague, Vienna, Venice, Croatia, Budapest, Bratislava, Krakow and a few other places in between. It’s a quality way of seeing Europe, even if you have to put up with sharing train cabins with boozy tramps who insist on throwing bottles at things out of the window and small Italian women laughing at your ridiculously tall mate. Aside from this, everything is super cheap compared to UK and generally the people are proper friendly.
Also, there is a massive amount of graffiti, in most of the cities, especially along the train lines. While we were out there we took a load of photos and never did anything with them. Here they are: