Is a demonic entity really trapped in this haunted home?

Does this rural Iowan home hold the spirits of its tragic history?

Do the lost spirits of this historic battle remain in this inn?

Do the spirits of American historical figures roam in this New York mansion?

What ghosts wander the halls of this grand castle?

In the series finale of BuzzFeed Unsolved: Supernatural, Ryan and Shane return to the place where their journey started to face the demon called Sallie once and for all.