Neckar, Germany

Neckar is a river in Germany, flowing in the state of Baden-Württemberg. The name of the river is of Celtic origin and means "wild water". Neckar is 367 km long, its basin covers an area of ​​14,000 square kilometers and is the fourth largest tributary of the Rhine. Neckar springs from the Black Forest and flows into the Rhine near Mannheim. The navigable section of the Neckar is the one from Plochingen to Mannheim. There are 27 locks along the river.
Historically, and to this day, Neckar is an important transport corridor in southwestern Germany. The Neckar River is used to transport goods and materials. There are ports in Plochingen, Stuttgart, Heilbronn and Mannheim. After the Rhine-Main-Danube canal was built in 1992, it was possible to transport goods and passengers from Neckar to the ports of the Danube.
From Plochingen to Stuttgart, the Neckar Valley is densely populated and covered with industrial areas where well-known companies such as Daimler AG, Mercedes Benz and Mahle GmbH are located. 
Along the Neckar Valley between the Odenwald hills, many castles rise, including Burg Hornberg and Burg Gutenberg. Again in this section, near them, are the closed Obregheim NPP and the still functioning Neckarvasteim NPP.
A walk along the Neckar is like a historical walk in time. Many ancient castles are located on its shores. The most famous of these is Heidelberg Castle. 
Apart from castles, many modern houses are perched on the banks of the Neckar. Most of them have traditional German architecture, others are a bit dull and gray. Stars such as Steffi Graf and Boris Becker have also chosen to house their houses on Neckar.