In the Tang, people seeing off friends who were heading west often went with them as far as Weicheng.
Tips
culture
Wang Wei's farewell poem 《送元二使安西》 opens 渭城朝雨浥轻尘, "morning rain in Weicheng settles the light dust", so the song made from it is also called 《渭城曲》. Today a district of 咸阳 carries the name.