Donau-Ries is a large, circular geological structure located in southern Germany, primarily in the state of Bavaria. It was formed by a meteorite impact around 15 million years ago, creating a unique landscape characterized by rolling hills, valleys, and fertile plains. The region is named after the Danube River, which flows nearby. The area is known for its rich history, including ancient settlements and medieval towns. Donau-Ries is also famous for its agriculture, particularly the cultivation of fruits and vegetables. Visitors can explore charming villages, historical sites, and enjoy outdoor activities in this picturesque region.