Give some stream of consciousness and then the answer. The Book of Daniel is a biblical apocalypse, combining a prophecy of history with an eschatology (the study of last things) which is both cosmic in scope and political in its focus. In more mundane language, it is "an account of the activities and visions of Daniel, a noble Jew exiled at Babylon," its message being that just as the God of Israel saved Daniel and his friends from their enemies, so he would save all of Israel in their present oppression.

Answer this question: where does the book of daniel take place?
This is the relevant information: In more mundane language, it is "an account of the activities and visions of Daniel, a noble Jew exiled at Babylon," its message being that just as the God of Israel saved Daniel and his friends from their enemies, so he would save all of Israel in their present oppression.
Therefore, the answer is Babylon.