Poland's longest bridge (1507 m) carries a pipeline that takes ash from the "Pątnów" power plant to a disused waste heap in Gosławice, near Konin.
The Kalisz District Museum has been in existence since 1948, but its traditions go back to collections from 1900 and which are among the oldest in Poland.
Poland’s largest salt mine, meeting 88% of the country’s needs. The Underground Tourist Route lets you see the workings of the mine.
The Leszno District Museum has its head office in two heritage tenement buildings. It has promoted the history and culture of the southern part of the region for more than 50 years.