You can spend one second to find it, or the Chest.
Open your Map.
Click on 'show active quests'.
hover your mouse over the name of a quest.
where that quest can be performed, or if ready to turn in where that is, will change color on the map.

If the name of the quest is Red, then it's on a different Map, do this for all 9 maps.
If it's green then this will show you on the map you are on because that where it is.

This feature has been in the game since February. Even before the Giant and the Wealth chest.