So, I've been ranging the wildlands killing every epic-level monster I can find in an attempt to create my own superunits from a 4 essence town (Fun times, fun times) and I can't help but I noticed that towns only support one "boss trophy bonus" (Or whatever you could call it). The problem here is that I have killed the Morian and Delin and placed their heads in the same town. Strangely the game seems to think that the town has two Heart's of Delin instead of one heart and one thing from Morian (See attached screenshot for proof).

Perhaps instead of having it as a wonder where you must decide where to place it at that precise moment; why not have it as an "quest unlockable" world wonder like the Temple to the Forgotten God (And make it 1 "hammer" creation)?

http://img32.imageshack.us/img32/8688/vlr2.jpg