Sup /trv/, so me and some friends are planning a eurotrip for next summer and we want to roll by either train or bus. So far i havent planned much, but we are starting in Gothenburg and right now it looks something like this:
Denmark (Copenhagen)
Germany (Berlin)
Czech Republic (Prague)
back to Germany for Munich
Austria (Salzburg, Vienna)
Slovakia (Bratislava)
Hungary (Budapest)
Serbia (Novi Sad, Belgrade)
Croatia
Slovenia

So imagine doing this and end up in Ljubljana, where would you go after?
And also, how good is it to travel by train/bus through Europe? I still want to see national parks and alps and lakes etc.

Im also very grateful for any tips on things to do and places worth seeing in the above countries/cities and also any other country in central europe because i can always change the trip if change my mind.

Thanks