Q: Context: The Danube (/ dnjub / DAN-ewb, known by various names in other languages) is Europe's second-longest river, after the Volga River. It is located in Central and Eastern Europe.

Question: where is the danube river located in europe?
Let's give stream of consciousness below
To answer the question, consider the following: It is located in Central and Eastern Europe. So the answer is Central and Eastern Europe.