Ostrów Tumski is the oldest part of the city of Wrocław.
It was formerly an island (ostrów in Old Polish) known as the Cathedral Island between the branches of the Oder River, featuring the Wrocław Cathedral built originally in the mid 10th century. The 13th century Main Market Square (Rynek) prominently displays the Old Town Hall.In the north-west corner of the market square there is the St.Elisabeth's Church (Bazylika Św.Elżbiety) with its 91,46 m tower, which has an observation deck (75 m).North of the church are the Shambles with Monument of Remembrance of Animals for Slaughter (pl).Salt Square (now a flower market) is located at the south-western corner of the market square.Close to the square, between Szewska and Łaciarska streets, there is the St.Mary Magdalene Church (Kościół Św.
Marii Magdaleny) established in the 13th century. Źródło: https://en.wikipedia.org/wiki/Wroc%C5%82aw
Admittedly, the area of Biebrza National Park is very special.
Trip to the area is a particularly good option to spend a holiday vacation or weekend trip out of town.
In this respect, we find a lot of places that necessarily must see, even if we do not care too much about the natural aspects of the site.
Worthy of note are certainly places like Tatry and Owl Mountains.
You can mention here for example, Roztocze National Park and around the seaside.
The fact that in Poland there are many national parks are the best proof of how special this place is..