How to find your way in Batman: Arkham City?
Solution 1:
To pull up the map, press Back/Select to bring up the map, then you can use Ⓨ/△ to set and clear objectives. Pressing Ⓨ/△ will set a waypoint/objective, then you can press it again to clear it and return to the story objective. The compass at the top of the screen (not visible in detective/thief modes) will also show your waypoint/objective.