Hello and welcome to Chomsongdae! Ever since I was selected as an official "Korea Clicker" by Korea.net in 2009 I have been blogging about Korea with topics as diverse as food, culture, music and Korean language. Add me on twitter! @sunflowerchoco
Chomsongdae (cheomseongdae/첨성대) is a national treasure in Korea. It is the oldest surviving observatory in East Asia. It was built by Queen Sondok, the first female ruler in Korean history during the Silla Dynasty in the 7th century.