I am going to show a bit of the Danube River. It is a long river and it would take a ton of pictures to show all of it. It is located in Central Europe.
All the pictures are from Wikipedia Commons.
This is by Shannon. I wrote the big blue names of the countries.
The Danube River begins in the Black Forest in Germany. I wrote Germany in green.
The river ends by draining into the Black Sea. This is a NASA Earth Observatory image.
A barge on the river in Germany by, Lyn Gatelwy.
In Vienna, Austria by, Lyn Gatelwy.
A cruise ship in Bratslava, Slovakia by, mbell1975.
Vukova port in Croatia by, Peron.
I couldn’t find a decent picture in the public domain for Yugoslavia or Bulgaria.
This is on the border between Slovakia and Hungary by, Miaow Miaow.
The last picture is of a river crane in Braila, Romania by, Gabriel.