Death's palace by the Deadly Sea is even more extensive. But it is also, currently, unarmed.
The Kingdom of Tonophria in the north is beneath the ice. Accessible by tunnels and hidden passages going down, there is nothing but an expanse of ice reminicent of Antartica above. Possibly one of the most interesting Kingdoms in the saga.
my fairy tale castle
Fantasy Castles Art Gallery - THE BEAUTY AROUND US - Earth Monster World