The Bialowieza Forest (National Park; Polish: Bialowieski Park Narodowy) in Podlaskie Voivodship in Poland
at the border with Belarus and is on the UNESCO World Heritage List.
Bialowieza is the last remains of the primeval forest which once covered most of Europe at the end of the last ice age, which has never been completely deforested. It contains several species of fauna which were once native in forests throughout Europe, but which have now been mostly eradicated. It is for example the only place where European Bison, (German: Wisent, Polish: Zubr) still remain free and living in the forest as they once did throughout Europe. Wolves, Lynx, Red Deer, Wild Boar, Elk (same as Moose in N. America), and Roe Deer are among its other inhabitants.
Hopefully plans in the future will include returning reverse-bred versions of the extinct Tarpan Horse and Aurochs, which can be found living in other smaller nature parks and zoos in Europe.
The inner-most sanctuary of Bialowieza is completely preserved and protected by a fence, with tourists only allowed inside with guides. Inside, the forest lives, breathes and decays at is has for thousands of years. Outside of the inner-sanctuary several more kilometers of forest are semi-preserved although sadly there are many reports of thinning and cutting of trees, supposedly due to disease, but more likely due to corruption and the market demand for large trees. Several extra kilometers of forest protection boundary could be added to this as a buffer.