Where to find upgrade workbenches in Fortnite?First of all, it is important to note that you must imperatively be equipped with the Tony Stark, which unlocks at level 93 of the Battle Pass, challenges them, starting at level 100.
As for the position of improvement workbenches, we find them everywhere on the map. These are not very difficult to locate, and the challenge should therefore be validated very quickly. Still, if you need a little help, here are a few locations.
Of course, there are plenty of other workbenches on the Fortnite map, but we've listed a majority of them. the skin Tony Stark must be worn for the challenge to be validated.