Chapter 2 of Fortnite begins with an immediate dive into the new island of the game: Apollo. If you try to open your minimap, you realize that it is entirely greyed out. You'll have to explore step by step the regions of Apollo to discover all the new places. This challenge of the "New World" Mission is to discover landmarks (10).
You should visit small areas between named locations to find them.
These are often lagoons, buildings, peaks... There are dozens of them! This challenge is simple to complete: all you have to do is move as soon as possible to the grey areas of the map to discover them.
Note that you must step ashore to discover the place and complete the countdown for the challenge. Once again, you should do this in Team Rumble, which will give you time to explore multiple locations in complete serenity.