However, Changdeokgung had suffered some damage for 350 years after the reconstruction. As a result, a large scale restoration took palace from 1990 to 1999. This restoration shows how much the Korean people loved Changdeokgung. Apparently, the UNESCO saw its value as well. Seeing Changdeokgung as a vital global asset, UNESCO listed it as a World Cultural Heritage. The UNESCO said that Changdukgung 'was outstanding example of Far Eastern palace architecture and garden design'.