Polen, or Poland, is a country located in Central Europe. It is bordered by Germany to the west, Czech Republic and Slovakia to the south, Ukraine and Belarus to the east, and the Baltic Sea to the north. The capital city is Warsaw, which is known for its rich history and vibrant culture. Poland has a diverse landscape that includes mountains, forests, and rivers. The official language of Poland is Polish, and the country has a population of approximately 38 million people. Poland is a member of the European Union and has a mixed economy that includes agriculture, manufacturing, and services. The country is also known for its historical sites, such as Wawel Castle and the Auschwitz-Birkenau concentration camp, which attract many visitors each year.