It is a very interesting option for those who like history. First you will discover a Museum of Gross Rosen concentration camp which is not very well known but has very interesting history. Visiting the camp inccudes a short film about its history. Visiting camp takes around 2,5h.  After Gross Rosen your driver will need around 30 minutes to take you to Ksiaz castle which is 3rd largest castle in Poland. You will have up to 2,5h to explore it and then your driver will take you back to your hotel in Wroclaw.