One River That Flows Through Many Capitals
Most rivers flow past a few towns. The Danube, in Europe, flows past a great many. It begins in the hills of Germany, where two small streams join. From there it moves east. It grows wider as other rivers flow into it.
On its way, the Danube passes through the capital cities of four countries. They are Vienna in Austria, Bratislava in Slovakia, Budapest in Hungary, and Belgrade in Serbia. Each city grew up beside the river because water was so useful. People could drink it, fish in it, and travel on it. Even today, long flat boats called barges carry goods such as grain along the Danube.
The river crosses many borders, so the countries along it have to work together. They agree on rules for boats. They share the job of keeping the water clean. What one country does to the river will reach the next country downstream.
At last the Danube arrives in Romania. There it spreads out into a delta, a fan of small channels and wetlands. Many birds make their homes there. Then the river empties into the Black Sea.