Judges 9:51
But there was a strong tower within the city, and thither fled all the men and women, and all they of the city, and shut it to them, and got them up to the top of the tower.
Torrey's Topical Textbook—AKJV

2 Chronicles 26:9
Moreover Uzziah built towers in Jerusalem at the corner gate, and at the valley gate, and at the turning of the wall, and fortified them.
Torrey's Topical Textbook—AKJV