Poland is a part of the global tourism market with constantly increasing number of visitors. Tourism in Poland contributes to the country's overall economy. The most popular cities are Kraków, Warsaw, Wrocław, Gdańsk, Poznań, Szczecin, Lublin, Toruń, Zakopane, the Salt Mine in Wieliczka and the historic site of Auschwitz – a German Nazi concentration camp in Oświęcim. The best recreational destinations include Poland's Masurian Lake District, Baltic Sea coast, Tatra Mountains, Sudetes and Białowieża Forest. Poland's main tourist offers consist of sightseeing within cities, historical monuments, natural monuments, business trips, agrotourism, bicycle touring, qualified tourism, mountain hiking (trekking) and climbing among others.
Kraków, royal palace at Wawel on the Vistula river, UNESCO World Heritage Site
Warsaw, Old Town Market Square, UNESCO World Heritage Site
Wrocław, The Old Town Hall in the Market Square
Gdańsk, St. Mary's Church
Oświęcim is a town in the Lesser Poland province of southern Poland, situated 33 kilometres (21 mi) southeast of Katowice, near the confluence of the Vistula (Wisła) and Soła rivers. The town is known internationally for being the site of the German Nazi-built Auschwitz concentration camp during World War II, when Poland was occupied by Nazi Germany.
Old Market Square
Oświęcim Royal Castle
Old town hall
The 14th-century St. Mary's Church