One of my favourite citi is Kraków. Also spelled , Krakow or Cracow, is one of the largest and oldest cities in Poland. It was the capital of Poland from 1038 to 1596.
The most famous place in Kraków is the St. Mary's Basilicum and the Sukiennice Cloth hall, the Wawel Catherdal. Kraków has 28 museums and public art galleries.
I think that young people shoud go to the aquapark, visit the Market Square, going to the galery with clothes and eating the fantastic ice-cream.
Kraków isn't a ideal city. The biggest problem is the traffic and smog. However, as far as I am concerned with History places, a lot of green spaces and good club. Kraków is still a great place to visit.