Bible Verses About Towers: On the walls of cities

Therefore he saide to Iudah, Let vs builde these cities and make walles about, and towers, gates, and barres, whiles the lande is before vs: because we haue sought the Lord our God, we haue sought him, and he hath giuen vs rest on euery side: so they built and prospered.

Moreouer Uzziah buylt towres in Ierusalem at the corner gate, and at the valley gate, and at the turning, and made them strong.