Self-guided Sightseeing Tour #1 in Gyeongju-si, South Korea

Hwangnyongsa (Korean: 황룡사), alternatively Hwangnyong Temple or Hwangryongsa, was a Buddhist temple in the city of Gyeongju, South Korea.

Wikipedia: Hwangnyongsa (EN)

Donggung Palace and Wolji Pond, formerly known as Anapji (Korean: 안압지), is an artificial pond in Gyeongju National Park, South Korea. It was part of the palace complex of ancient Silla. It was constructed by order of King Munmu in 674 CE. The pond is situated at the northeast edge of the Banwolseong palace site, in central Gyeongju. It is an oval shape; 200m from east to west and 180m from north to south. It contains three small islands.

Wikipedia: Donggung Palace and Wolji Pond (EN), Website

Cheomseongdae is an astronomical observatory in Gyeongju, South Korea. Cheomseongdae is the oldest surviving astronomical observatory in Asia, and possibly even the world. It was constructed in the 7th century in the kingdom of Silla, whose capital was Seorabeol, or present-day Gyeongju (경주). Cheomseongdae was designated as the country's 31st national treasure on December 20, 1962. It forms a UNESCO World Heritage Site along with other Gyeongju Historic Areas.

Wikipedia: Cheomseongdae (EN), Website

The Gyeongju Hyanggyo is a hyanggyo or government-run provincial school during the Goryeo and Joseon periods, which is located the neighborhood of Gyo-dong, Gyeongju, North Gyeongsang province, South Korea. The foundation date is unknown, but was established to enshrine the memorial tablet of a wise Confucian scholar and to commemorate him as well as to provide mid-leveled education to the local during the Goryeo period. The site was originally the place where the Gukhak, or national academy of the Silla kingdom was situated. The Gukhak was built in 682, the second year of King Sinmun's reign and is equivalent to current national universities. It is designated to the 191st Tangible Cultural Property of North Gyeongsang province.

Wikipedia: Gyeongju Hyanggyo (EN)