South Korea: Namhansanseong

Namhansanseong is a historic Korean fortress city in Gwangju, Gyeonggi Province, South Korea. A UNESCO World Heritage Site, the fortress lies atop the mountain Namhansan and stretches 12 km in length. It served as an emergency capital city during the 1392–1910 Joseon period.

 Thanks to Ms Ainu.

South Korea: Seowon

Seowon were the most common educational institutions of Korea during the Joseon Dynasty. They were private institutions, and combined the functions of a Confucian shrine and a Confucian school. In educational terms, the seowon were primarily occupied with preparing young men for the national civil service examinations. In most cases, seowon served only pupils of the aristocratic yangban class. On 6 July 2019, UNESCO recognized a collection of nine seowon as World Heritage Sites.

 

Thanks to Ms Ainu.

South Korea: Wanggung-ri

The Archaeological Site in Wanggung-ri  refers to the remains of a Baekje-era palace and temple in Wanggung-ri, Wanggung-myeon, Iksan, South Korea. In 2015, it was made a UNESCO World Heritage Site, as part of the item Baekje Historic Areas.

 Thanks to Ms Ainu. Stamp used. Extreme Right- 2010: Saekdongeolgul (Visit Korea). Center- 1991:Korean Mouth Organ. 

South Korea: Seokguram

The Seokguram Grotto is a hermitage and part of the Bulguksa temple complex. It lies four kilometers east of the temple on Mt. Tohamsan, in Gyeongju, South Korea. In 1995, Seokguram was added to the UNESCO World Heritage List together with the Bulguksa Temple. It exemplifies some of the best Buddhist sculptures in the world.

Korea: Fireworks

Thanks to Ms Kim.

South Korea: Jeju Island

Jeju Volcanic Island and Lava Tubes together comprise three sites that make up 18,846 ha. It includes Geomunoreum, regarded as the finest lava tube system of caves anywhere, with its multicoloured carbonate roofs and floors, and dark-coloured lava walls; the fortress-like Seongsan Ilchulbong tuff cone, rising out of the ocean, a dramatic landscape; and Mount Halla, the highest in Korea, with its waterfalls, multi-shaped rock formations, and lake-filled crater. The site, of outstanding aesthetic beauty, also bears testimony to the history of the planet, its features and processes.

Postcard 1: Seongsan Sunrise Peak (Spring)

Thanks to Dr Kiran Acharya for posting it from Jeju

Postcard 2: Seongsan Sunrise Peak (Winter)

Thanks to Mr Johonson who was visiting Korea.

Postcard 3: Baengnokdam Crater Lake on top of Mt Halla

Thanks to Dr Kiran Acharya

Postcard 4: Manjan Cave

Thanks to Dr Kiran Acharya

South Korea: Changdeokgung Palace

Changdeokgung, also known as Changdeokgung Palace or Changdeok Palace, is set within a large park in Jongno-gu, Seoul, South Korea. It is one of the "Five Grand Palaces" built by the kings of the Joseon Dynasty (1392–1897). As it is located east of Gyeongbok Palace, Changdeokgung—along with Changgyeonggung—is also referred to as the "East Palace".

Thanks to Dr Kiran Acharya

South Korea: Gyeongbokgung Palace

Gyeongbok Palace, is a royal palace located in northern Seoul, South Korea. First constructed in 1395, later burned and abandoned for almost three centuries, and then reconstructed in 1867, it was the main and largest palace of the Five Grand Palaces built by the Joseon Dynasty. The name means "Palace" [Gung] "Greatly Blessed by Heaven" [Gyeongbok].

Thanks to my friend Vishwanath Kamath who was visiting Korea.