gǔchéng / de / wànglóu / jiàn / zài / shāndǐng / kěyǐ / fǔkàn / zhěnggè / hégǔ古城的望楼建在山顶,可以俯瞰整个河谷。The old city's watchtower was built on the mountaintop, overlooking the entire valley.