The international airport is located in Wrocław - Wrocław ? Copernicus Airport. The A4 motorway and A18 motorway run through Lower Silesia. Lower Silesia is one of the most visited regions in Poland.
It is famous for a large number of castles and palaces (more than 100), inter alia: Książ Castle, Czocha Castle, Grodziec castle, Gola Dzierżoniowska Castle.
There is also a lot in the Jelenia Góra valley. The most widely visited city is Wrocław. The Festival of Good Beer is held every year on the second weekend of June. Other highlights: Kłodzko Fortress, Fort Silberberg, Project Riese, Wambierzyce, Legnickie Pole, Oleśnica Mała, Lubiąż Abbey, Krzeszów, Henryków, Vang stave church, Churches of Peace, Mount Ślęża, Table Mountains, Owl Mountains, Karkonosze, The Main Trail Sudetes, Barycz Valley Landscape ParkŹródło: https://en.wikipedia.org/wiki/Lower_Silesia
Certainly the most attractive in terms of natural places, and also the most frequently chosen by tourists regions are mountains.
The highest mountains in Polish is a place where you can really relax, and by the way also to learn about the local wildlife.Of course, Poland is worth a visit also in other Polish regions: notable, for example Bialowieza Forest and mites. The sea also find unique natural regions that are worth seeing.
According to statistics, in 2012 Kraków was visited by 7.3 million tourists including 2.1 million foreign travelers (over 30% of their grand total).175176 The visitors spent over 2.5 billion złoty in the city (without travel costs and pre-booked accommodations).