Walking along the causeway between the gravel tanks in the so-called Czerwonackie Mazury, by the Tropicana beach in Owińska, you certainly won't miss it. Since August 19, 2023, a dolomite boulder has been officially in public space, marking the 17th meridian passing through the commune in this very place. It is 1,168 km away from the most famous one in Greenwich.
In addition to the Czerwonak commune, it also includes Rogoźno, Słupsk and Wrocław. It runs through 18 countries: Norway, Sweden, Poland, the Czech Republic, Slovakia, Austria, Hungary, Croatia, Bosnia and Herzegovina, Italy, Libya, Chad, the Central African Republic, Congo, the Democratic Republic of Congo, Angola, Namibia and the Republic of South Africa.
Source: Czerwonak Commune Office