Cheomseongdae, built during the reign of Queen Seondeok (r. 632–647), is the oldest astronomical observatory in Asia. This observatory is a valuable cultural heritage showing the highly scientific development of that time.

Once a royal palace of the Silla Dynasty, Donggung Palace and Wolji Pond was a place for royal banquets and important guests. Today, its illuminated palace buildings reflected on the pond create one of Gyeongju's most beautiful night views.