PZ is right about 'Real' Ghosts of our Minds.
But no - I don't go for the photographed 'ghosts' one bit.
It's just the Entertainment Industry working at a grass roots amateur level.
Yowies, Bunyips should not have been included.
I from personal experience know that the Yeti Skull is a fake, but the 'legend' of the Yeti itself in its origination - is pretty much 'true'. There are a lot of dreadlocked, wild and very tall Tibetan 'country boys' up there.
But besides these, they are also the remainder of a near extinct assortment of later Hominid species still lingering in isolation like a slow death. Back in the past, there were many 'hermits', men who escape the violence and evil of the world, through solitude. Fear is the Mind Killer.