﻿Northern Fortress - Key

And what do I see? Another puzzle!

We can’t climb the pedestal in any possible way, but these four artefacts most likely lie on those lifts for a reason. An explanation as to why they are in different parts of this location could be made up. Sadly I can’t examine the work principle of these mechanisms.But you have your own head on your shoulders. Try to find  something here that would help us leave this place. 
Take heed. I think that we’ll meet a good few problems while trying to solve this riddle…
