Poland
Drive around Poland by car is a great idea! Roads are sometimes rotten but it's improving quickly, especially since the European Championship soccer organized by Poland and Ukraine in 2012 and one thing for sure: you will live an adventure and have fun in amazing landscapes . And see the Poles are very friendly and speak English youth in general.
Towns:
I think a North South axis is the ideal route. I suggest you spend at least one night in Krakow, one in Warsaw and one in the Baltic Sea in the north. This is the minimum to enjoy the local heritage. Try going to the opera you will see there are fantastic live and not too expensive. Visit parks and monuments!
The mountain
