Changdeokgung Palace Complex - South Korea

Constructed in the 15th century during the Joseon Dynasty, the Changdeokgung Palace Complex occupies a 57.9 ha site in Jongno-gu, in northern Seoul. 
Changdeokgung is an exceptional example of official and residential buildings that were integrated into and harmonized with their natural setting. The complex was originally built as a secondary palace to the main palace of Gyeongbokgung, differentiated from it in its purpose and spatial layout within the capital. 

The official and residential buildings that make up the complex were designed in accordance with traditional palace layout principles. The buildings and structures include three gates and three courts (an administrative court, royal residential court and official audience court), with the residential area to rear of the administrative area reflecting the principles of ‘sammun samjo (三門三朝)’ and ‘jeonjo huchim (前朝後寢)’. The buildings are constructed of wood and set on stone platforms, and many feature tiled hipped roofs with a corbelled multi-bracket system and ornamental carvings. - in: https://whc.unesco.org/en/list/816/

KR-7992, sent by Samara.
The Juhamnu pavilion was built in 1776 and is a 2 floors palace raising the talented, studying and publishing for the country. The 1st floor is the Gyujangkak royal library and the 2nd a readind room.

State exams were conducted in front of the pavilion on special occasions in presence of the king.

Injeongjeon Hall is the main hall at Changdeokgung Palace. It was used by the king and officials for conferences and as a meeting point with visitors. Foreign envoys would meet the king at this location when they arrived at the palace.
Originally built in 1405, it was twice destroyed by fire, once in 1592 and again in 1804. Both times it was rebuilt.
The royal walkway and courtyard, dating back to 1609, can be seen in front of the hall.
On this walkway are stone markers inscribed with ranks of court officials. Court officials would stand behind their designated stone marker when meeting with the king. Higher ranked officials stood closest to the king. Lower ranked officials would stand furthest from the king. - in: https://www.theseoulguide.com/sights/palaces/changdeokgung-palace/injeongjeon-hall-and-injeongmun-gate/

Photo by Seo Heun-Kang

KR-25753, sent by "yunjeong".

On this card there's the Jangnangmum Gate, the Main Gate of Nakseonjae House.

Nakseonjae was built by King Heonjong in 1847 for his concubine Kim Gyeongbin. It stands to reason that King Heonjong must not have been to infatuated with his wife considering he had this entire complex built for a concubine. Even the name Nakseonjae tends to indicate that the King preferred his concubine more than his wife because Nakseonjae literally means the “Mansion of Joy and Goodness”. This probably did not go over to well with his wife which might explain why the King died at age 22 only two years later in 1849.

Nakseonjae had been closed off to the public for decades because it had been used as the residence for the last remaining Korean princesses until 1989 when Princess Deokhye, the youngest daughter of King Gojang, the 26th king of the Joseon Dynasty passed away in 1989. Even after her death Nakseonjae didn’t open to the public until 2006. - in: http://rokdrop.com