Some versions state that a wall was built around the city. Others state that it was a moat that was constructed. The Book of Nehemiah states that a wall was built. Maps show a wall, but not a moat or trench. The Hebrew word used to describe what it was can mean wall or trench , or a number of other words.
Some versions mention streets and a square as well.
Some versions imply a long period of rebuilding, while others state that the city will remain built for sixty-two weeks. Some versions are not clear on this. There seems to be differences of opinion on what Daniel has reported. To some readers, the answer may appear to be obvious.