As a part of the new Fortnite Chapter 2 release, there are challenges to discover different sections of the new map.
All locations are grayed out until landing (discovering).
There are places to discover and those are found at the “???” marked locations. The landmarks however stay grayed out until landing there, as seen below.
Simply continue landing in grayed out locations that don’t have three question marks, and eventually you’ll have the challenge completed!
For other New World Challenges, check out our main list!