In Juno there's a church-like building at (273,141). It has a warp portal, but it spits you right back out when you try to go through it. However, apparently there's a few people that seem to know what to do as I saw a priest and sader go into this building and not be spit out. Now, I've searched a couple sites for information regarding this thing, with no success.

What I'm asking is, if it's possible that you (Doddler or Resplendent) could find something where I could not?

Oh, should probably mention that this building had no warp portal before the Hugel update.

That's the Rossimir mansion in the KH quest.