I already knew (and participated) in community constructions, in which several people build areas or smaller MOCS for a bigger MOC or display. But what I didn't know was this Relay Build concept, a very interesting activity that allows different LEGO fans, anywhere in the world, to participate in the same build. The concept came through AFOL @slimjimlego (Instagram), who started this individual MOC, using only a maximum of 500 bricks. After that, he passed the file to another fan, who added more elements, again using a maximum of 500 LEGO parts and without modifying the work previously developed. And so on, there are currently 7 fans involved - (@the_brick_stop, @vintagebricks_, @classicstylecastle, @highteatoys, @slimjimlego, @bricksmakehappy e @bricks_fan_uy) and the project is already in this phase. You can and should check the status of this medieval building or see other fantastic works by these AFOLs (especially if you're a LEGO Castle fan), in their Instagram galleries.