Freiburg

1. Freiburg is known for its commitment to environmental sustainability and is often referred to as the "Green City" due to its extensive use of renewable energy sources and eco-friendly initiatives. 2. The city features a unique medieval old town, which includes the famous Freiburg Minster, a stunning Gothic cathedral that took nearly 200 years to complete and is renowned for its impressive tower. 3. Freiburg hosts the largest university in the state of Baden-Württemberg, the University of Freiburg, established in 1457, making it one of the oldest universities in Germany and a hub for research and innovation.