"Czy to jest bezpieczne miejsce" isn't possible ?
It's perfectly fine.
Thank you for your answer ! :) I reported it, i hope it will be corrected.
Still not accepted.
Added now.
Is the Czy absolutely required in this sort of question?
@mbylander: No, but I'd recommend using it as there isn't even a real verb in this question. But "To bezpieczne miejsce?" also works (now).
Czy to miejsce jest bezpieczne? Why not correct?
The sentence is correct, but you changed the grammatical subject from "it" to "this place", which is a change we do not allow.