Sungnyemun
Sungnyemun is the front gate of the castle that surrounds Seoul during the Joseon Dynasty. It is often called Namdaemun. Normally Namdaemun is known as the name given by Japan during the Japanese colonial period, but this name is called the name of the surname. It was founded in 1396. It was repaired in 1447 and 1479. Sungnyemun is said to have been written by the Yangnyeong Daejun, according to the "Jibong", but there are many stories about the plate. The names of the four main gates and Boseonggak in Seoul were built in accordance with five ideas, which express the five virtues of phosphorus, righteousness, ritual, ji, and god, and the "rituals" of Sungnyemun are derived here. On March 3, 2006, Sungnyemun was closed to the public by opening the central passage of Sungnyemun in Seoul to prevent people from being isolated by roads and to bring cultural assets closer to the citizens.