Zasavje is a region located in central Slovenia, known for its rich industrial history and beautiful natural landscapes. It encompasses several towns, including Trbovlje, Zagorje ob Savi, and Hrastnik, which were historically significant for coal mining and heavy industry. The area is characterized by its hilly terrain and the Sava River, which flows through it. Today, Zasavje is transitioning from its industrial past to a more diverse economy, focusing on tourism and sustainable development. The region offers various outdoor activities, such as hiking and cycling, and is home to cultural sites, including the Trbovlje Power Plant, a notable architectural landmark.