'Capital' in the Bible

The oracle (a burdensome message—a pronouncement from God) concerning Nineveh [the capital city of Assyria]. The book of the vision of Nahum of Elkosh [which he saw in spirit and prophesied].

Are you better than Thebes,Which was situated by the waters of the Nile,With water surrounding her,Whose defense was the sea (the Nile),Whose wall consisted of the sea?