The Rhine-Main-Danube Canal is a significant waterway in Germany that connects the Rhine River to the Danube River. This canal allows ships to travel between the North Sea and the Black Sea, facilitating trade and transportation across Europe. It spans approximately 171 kilometers and features several locks to manage changes in water levels. Constructed between 1921 and 1992, the canal plays a crucial role in enhancing the economic connectivity of the region. It supports both commercial shipping and recreational boating, making it an important infrastructure project for Germany and its neighboring countries.