In the middle and lower basins of the Biebrza there are extensive wet meadows, swamps and peat bogs. Their occurrence is caused by the terrain (in particular the narrowing of the valley between the pools), which causes the river to flood every year. It is the largest swampy area in Poland. The Bi

A historic wooden house from the 20th century. Once used by a well-known Catholic family, belonging to the Roman Catholic Parish of St. Andrew the Apostle in Leipzig. The building is one of the landmarks of the village, it is a symbol of Leipzig.

Osowiec Fortress was a typical barrier fortress. Situated in the narrowing of the Biebrza marshes, it was to be a cover for the Białystok - Królewwiec railway and communication route. The fortress was built in 1882-1887 (the first design works were carried out from 1873) and modernized until 1892

Local guides - enthusiasts of fortifications - will gladly take you on a two-hour journey under the arm with history, leading you to the "tunnel of death" and "scream hall." With a little luck, you'll meet the Black Lady and other ghosts haunting the Oswiecim Stronghold. The museum is available i