An important stop on the Copernicus Trail is the village of Piwnice, home to an astronomical observatory. It was founded in 1947, and its main initiators were astronomers from the Nicolaus Copernicus University, Wilhelmina Iwanowska and Władysław Dziewulski. It houses one of the largest radio telescopes in Europe. As part of the EU's "Faraday" program, a project is underway to search the sky at a frequency of 30 GHz. The observatory is also a place for educating students and popularizing knowledge about space. The village of Piwnice has been known since the mid-14th century, when it was a Teutonic farmstead. The construction of a manor house surrounded by a park dates back to the beginning of the 20th century. Near the village, there is the Piwnicki Forest Nature Reserve, where you can admire, among other things, 300-year-old oak trees.