The worlds largest nether portal that I have made consists of 28 nether portals put together. I honestly made this one bc I did not know what to do at the time. This is in the same world as my project The Mansion was in.In the 1st photo Im trying to look at the whole thing from flying up high. In the 2nd photo Im looking up from the ground. In the 3rd photo, Im looking down at the portal bc Im standing on top of it.