There's a building in the Belltown area, just north of the downtown core area, that was a hospital in it's first occupation, and as the result, the place at 1st & Vine is just teeming with ghosts. It's called the "New Pacific Apartments", and it has a restaurant, "Two Dago's from Texas" on the ground floor.
I lived there for a number of years, and some of the rooms would have an adverse effect on who was living in the rooms.