Some facts
Poland (Polish: Polska ?p?lska ( listen)), officially the Republic of Poland (Polish: Rzeczpospolita Polska,a About this sound listen (help?info)), is a country in Central Europe,11 bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north. The total area of Poland is 312,679 square kilometres (120,726 sq mi),9 making it the 71st largest country in the world and the 9th largest in Europe. With a population of over 38.5 million people,9 Poland is the 34th most populous country in the world,12 the 8th most populous country in Europe and the sixth most populous member of the European Union, as well as the most populous post-communist member of the European Union. Poland is a unitary state divided into 16 administrative subdivisions.
Źródło: https://en.wikipedia.org/wiki/Poland
Cracow - worth to know
Kraków (Polish pronunciation: ?krakuf About this sound listen (help?info)), also Cracow or Krakow (US English /?kr??ka?/, UK English /?kr?ka?/),23 is the second largest and one of the oldest cities in Poland. Situated on the Vistula River (Polish: Wisła) in the Lesser Poland region, the city dates back to the 7th century.4 Kraków has traditionally been one of the leading centres of Polish academic, cultural, and artistic life and is one of Poland's most important economic hubs. It was the capital of the Crown of the Kingdom of Poland from 1038 to 1569; the Polish?Lithuanian Commonwealth from 1569 to 1596;5 the Free City of Kraków from 1815 to 1846; the Grand Duchy of Cracow from 1846 to 1918; and Kraków Voivodeship from the 14th century to 1998. It has been the capital of Lesser Poland Voivodeship since 1999.
The city has grown from a Stone Age settlement to Poland's second most important city. It began as a hamlet on Wawel Hill and was already being reported as a busy trading centre of Slavonic Europe in 965.4 With the establishment of new universities and cultural venues at the emergence of the Second Polish Republic in 1918 and throughout the 20th century, Kraków reaffirmed its role as a major national academic and artistic centre.
Źródło: https://en.wikipedia.org/wiki/Krak%C3%B3w
Wroclaw - elemental informations
Wrocław ("?vr?tsw?f"; Polish pronunciation: "?vr?t?swaf" ( listen), German: Breslau, "b??s?la?"; Latin: Vratislavia) is the largest city in western Poland. It is on the River Oder in the Silesian Lowlands of Central Europe, roughly 350 kilometres (220 mi) from the Baltic Sea to the north and 40 kilometres (25 mi) from the Sudeten Mountains to the south. Wrocław is the historical capital of Silesia and Lower Silesia. Today, it is the capital of the Lower Silesian Voivodeship. At various times in history, it has been part of the Kingdom of Poland, Bohemia, Hungary, the Austrian Empire, Prussia, and Germany. It became part of Poland in 1945, as a result of the border changes after the Second World War. The population of Wrocław in 2014 was 634,487, making it the fourth-largest city in Poland.
Wrocław classified as a global city by GaWC, with the ranking of high sufficiency and living standard. It was among 230 cities in the world in the ranking of the consulting company Mercer - "Best City to Live" in 2015 and the only Polish city in this ranking has been recognized as a city growing at the business center.
In 2016, the city will be the European Capital of Culture and the World Book Capital. Also, Wrocław will host the Theatre Olympics, World Bridge Games and the European Film Awards in 2016, IFLA Annual Conference and World Games in 2017
Źródło: https://en.wikipedia.org/wiki/Wroc%C5%82aw