Destroy niches in Fortnite
The niches in Fortnite are quite numerous since we find them almost everywhere, in most places and, sometimes, in notable places. Therefore, it will not necessarily be difficult for you to validate the challenge, unless you find yourself in a game where all the players have decided to destroy these famous niches .Unsurprisingly, you can imagine that most of the niches are found in the gardens of the houses, and very often, a chest is hidden there. You can find, on the map below, several niche locations so you don't waste time searching. However, we advise you to go to Retail Row, since four niches are in the same garden.
You will have to destroy three of them to validate the challenge and leave with the promised 20 XP. You can find on the map below some locations of niches in Fortnite.