Bulguksa Temple is a representative relic of Buddhist culture from the Silla kingdom. The temple was built during the 15th year of King Beopheung's reign (514-540) to wish for peace and prosperity for all. It was later rebuilt in 751 by Kim Dae-seong. Unfortunately, the temple caught fire during the Imjin War (1592-1598). After the war, the temple suffered serious damage and was often the target of theft. Starting in 1920, the temple has undergone continual restoration work. The temple now holds seven national treasures, a number of additional important heritages, and was designated a World Cultural Heritage Site along with the nearby Seokguram Grotto by UNESCO in December 1995.

Seokguram Grotto was constructed by Kim Dae-Seong during the reign of King Gyeong-Deok (742-765) of the Silla Kingdom. Located 3 kilometers away by hiking trail and 9 kilometers by car from Bulguksa Temple, the grotto was designed very harmoniously with the seated Buddha facing the East Sea. It is a valuable cultural heritage that is preserved and registered as a UNESCO World Heritage on December 6, 1995.

Cheomseongdae Observatory, constructed during the reign of Queen Seondeok (r. 632-647), is one of the landmark of Gyeongju. The observatory was built in a cylinder shape at approximately 9 meters in height. The observatory consists of 365 stones, symbolizing the number of days in a year. The rocks are piled in 27 layers symbolizing the 27th ruler, Queen Seondeok, and the days in a lunar month by adding the of two rock layers on top.