Explore Gyeongju's Ancient Astronomical Observatory Tower

Gyeongju's Ancient Astronomical Observatory Tower, commonly known as Cheomseongdae, is the oldest still exsisting astronomical observatory in East Asia. Built during the 7th century in the Silla Kingdom, it stands at 9.17 meters tall and is made of 362 granite stones, symbolizing the days of the lunar year. Its unique bottle-shaped design allowed ancient astronomers to observe the stars and planets. Cheomseongdae's architectural precision reflects the advanced scientific knowledge of the time and its cultural importance as a UNESCO World Heritage site, making it a must-see landmark in Gyeongju, Korea's ancient capital.