One of Korea's designated treasures - Hyangwonjeong, a two-story pavilion on a small artificial island in the middle of a pond on the northern grounds of Gyeongbokgung Palace was built around 1870 by King Gojong of the Joseon Dynasty.
The pavilion has been undergoing a repair and excavation project since May 2017 as the building kept experiencing subsidence and as researchers tried to figure out the structure's heating system.
On Wednesday, a unique type of 'Ondol' - Korea's traditional house heating system - was unveilied at the site.
Traditional 'Ondol' warms up the floorusing direct heat from wood smoke that travels under the floor.
But what's different about Hyangwonjeong Pavilion's 'Ondol' is that the smoke travels along the sides of the first floor, not through the center.
Researchers say it's the first such system found at a pavilion in Korea.
"This area has one of the most best views of Gyeongbokgung Palace. We expect it to become a valuable place for resting and experiencing history."
Korea's Cultural Heritage Administration plans to restore the pavilion to its original glory and open it to the public in July 2020.
Kan Hyeong-woo, Arirang News.