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 Warsaw, Kraków, Poznań, Wrocław, Gdańsk, Lublin, Toruń and the historic site of Auschwitz - Germannazi concentration camp in Oświęcim. The best recreational destinations include Poland's Masurian Lake District, Baltic Sea coast, Tatra Mountains (the highest mountain range of Carpathians), Sudetes and Białowieża Forest. Poland's main tourist offers consist of sightseeing within cities and out-of-town historical monuments, business trips, qualified tourism, agrotourism, mountain hiking (trekking) and climbing among others. Poland is the 19th most visited country in the world by foreign tourists (just below Canada), as ranked by World Tourism Organization (UNWTO) in 2010–2011.