譙樓 [谯楼]

Jyutping ciu4 lau4
Pinyin qiáo lóu

Definitions (Wiktionary)
  1. noun
    drum tower
    (syn.) 鼓楼, 鼓樓
  2. noun
    a platform on top of a city wall that allows one to watch for the enemy
    (syn.) 敌楼, 敵樓