Explorer complete for shiverp. and maguuma
If you have two monitors, bring up
http://gw2.mmorpg-life.com/interactive-maps/
on one of them, and click on the individual zones. Then scan your in game map in comparison with the interactive map. You can check the box for pois-only if that helps, though I find it’s easier to scan if I have hearts etc visible to tell me where on the map I’m looking.
Below the map there is a list of pois by name as well. You could write those down and then look on your game map to see what you’re missing, then click on the name for a photo-guide to finding it.