dān chéng
see 鄲城縣|郸城县[Dan1 cheng2 Xian4]
郸
dān
used in place names 邯鄲|邯郸[Han2 dan1] (historically, a county in Hebei, now a city) and 鄲城|郸城[Dan1 cheng2] (a county in Henan)
城
chéng
city walls