'Tower' in the Bible

Thy neck is like the tower of David builded for an armoury, whereon there hang a thousand bucklers, all shields of mighty men.

His cheeks [are] like beds of spice, a tower of fragrances; his lips [are] lilies dripping liquid myrrh.

Thy neck is as a tower of ivory; thine eyes like the fishpools in Heshbon, by the gate of Bathrabbim: thy nose is as the tower of Lebanon which looketh toward Damascus.