Central Europe trip. Planning going to Vienna/Bratislava/Graz/Maribor/Ljublana/Zagreb for a week in early September as a 31 yo solo male traveler. Any good tips for things to do there? Anything or any city I should avoid or go to instead? Oscure historic museums/sites would be interesting, please no "intro to WW2! museum. Also any good metal/rock bars/clubs in any of the cities? Will be flying in and out, traveling with public transport.