I am planning on a two-month trip through some parts of Europe, including Scandinavian countries, St. Petersburg, Czech Rep., Poland, Latvia, Estonia, Lithuania, Romania, Bulgaria, Hungary, Serbia, and Greece.

If you have experience in such routes (or close to it), I would appreciate your advice/feedback/wisdom to get the most out of the flavours offered by those countries. I prefer bus or train to experience more. I have spent 4 months travelling throughout Western Europe (mostly by roads) and it was a great experience. I hope to have the same on this Eastern venture.