In Warsaw I went to the old town. I also went to the combo Pizza Hut, Taco Bell 

and KFC. I recommend a visit if you are in the area. I'd say the chicken is 

better than the tacos.

Katowice was very polluted, but there seemed to be a lot of stuff to do. 

Krakow was really nice, historically, and shopping-wise.

Konin was on the way to Kazimez Biskupi, a small village. 

I didn't find much to do waiting for the KB bus.