Eastern Europe is a region that includes countries such as Poland, Hungary, Czech Republic, Slovakia, Romania, and the Baltic States. It is characterized by a rich history, diverse cultures, and various languages. The region has experienced significant political changes, especially after the fall of the Soviet Union in the early 1990s, leading to the emergence of independent nations. The geography of Eastern Europe features a mix of landscapes, including mountains, plains, and rivers. Major rivers like the Danube and Vistula play important roles in trade and transportation. The region is also known for its historical landmarks, such as Prague Castle and the Buda Castle, which attract many tourists each year.