<prompt> Translate the following text to EnglishWakati mmoja, ngome hiyo ilikuwa na minara 49 na ilikuwa mojawapo ya ngome kubwa zaidi za nchi hiyo ambazo hazingeweza kushambuliwa.  <response>: Once a vast fortification of 49 turrets, it ranked alongside Osaka and Nagoya as one of the countrys greatest impregnable bastions. 