Epic and DC have teamed up for a Batman crossover event in Fortnite: Battle Royale, and of course, it features its own set of limited-time challenges to complete. Most of these tasks involve using different Batman items, but one mission asks you to light different Bat Signals outside of Gotham City--the new Rift Zone that opened up where Titled Town once stood.
There are several Bat Signals scattered around the map, but they'll always appear in the same locations and can be used by multiple players, so they should be easy to find once you know where to look. To complete this challenge, you'll need to activate three different signals. You can see where a handful of them are in the video above. We've also put together a map of all the ones we've found in our written Bat Signal locations guide.