If you go up Donhwamun-gil from Jongno 3-ga Station, you can see Donhwamun of Changdeokgung Palace.
Injeongjeon Hall in Changdeokgung Palace. It was a building where New Year's greetings, state ceremonies, and foreign envoys were held. It was large, wide, and magnificent, so it was the place with the most people.
@Juhapru and @Buyongjeong
Way out.