"Beijing" is from pinyin Běijīng, which is romanized from 北京, the Chinese name for this city.
[24] Beijing Capital International Airport's IATA code is PEK, based on the previous romanization, Peking.
The most prominent is Tokyo, Japan, whose Han script name is written 東京 (Dongjing, or "Eastern Capital").
東京 was also a former name of Hanoi (as Đông Kinh or "Tonkin") in Vietnam during the Later Lê dynasty.
A former name of Seoul in South Korea was Gyeongseong, written in Han script as 京城 or "Capital City".
The history of China since the Tang dynasty has also been full of secondary capitals with directional names.
It was the proposed capital of the Ming dynasty mooted by the Hongwu Emperor in the 14th century, to be located on the site of his destroyed childhood village of Zhongli (鍾離), now Fengyang in Anhui.