Need to see in Wroclaw - Wikipedia
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
What places in Poland is unique in natural ways?
Poland is a region very attractive nature. 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. The hilly places in Poland is indeed much, much more - should go well in the Holy Cross Mountains and Pieniny. In Poland we will also find areas where there is a completely different vegetation and animals. 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.
Outdoor Recreation
Outdoor Recreation is increasingly willing chosen by Poles form of recreation, especially during the holidays or winter holidays. No wonder - in Poland, because we find many places where you can spend your time very attractive, using the occasion of the beautiful surrounding nature. In Poland, we find many mountains, with peaks offering stunning views and well-prepared trails invite only hours of hiking. And in the winter we can take advantage of the ski slopes. Rest in nature is not only the top - should you choose is also the beautiful Mazury lake or coastal area to see. Each of these places is recommendable holiday destination.