What's taller a castle keep or the curtain wall?

Question

What's taller a castle keep or the curtain wall?

Answer 1

Keep for sure.

Answer 2

Its curtains for you so, it dont matter

Answer 3

The keep of a castle would be the main part of the defense system so it had to be tall enough to give a commanding view of the whole of the castle area.  Castles would have a ring of defences with either a moat or a position on high ground, then the curtain walls and finally the keep.

DWD