Cheomseongdae Observatory (경주 첨성대)
Address140-25 Cheomseong-ro, Gyeongju-si, Gyeongsangbuk-do
AreaGyeongbuk
TypeTourist attraction
TimesSummer season 09:00-22:00 Winter season 09:00-21:00
ClosedN/A (Open all year round)
PhoneGyeongju Station Tourist Information Center +82-54-772-3843
Websitehttps://www.gyeongju.go.kr
Directions

Cheomseongdae Observatory, constructed during the reign of Queen Seondeok (r. 632-647), is one of the landmarks 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.◎ Travel information to meet Hallyu’s charm - "A Good Day to Be a Dog"Cheomseongdae Observatory, where Bo-gyeom and Ji-ah, bound by a special fate, encounter each other, is the landmark that represents the city of Gyeongju and one of the oldest astronomical observatories in the world.

In addition to its superlative value as a historical site, it is also popular as a tourist destination thanks to flowers and plants that bloom each season.

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Source: Korea Tourism Organization (TourAPI). Listing generated 2026-08-27 03:11 UTC; details can change — check the official page before you go.