Statue of King Sejong (Gwanghwamun)
The statue of King Sejong was dedicated on 9 October 2009, in a ceremony attended by attended by President Lee Myung-bak and other Korean government official, on a Hangul Day in celebration of the 563rd anniversary of the invention of the Korean alphabet by King Sejong, two months after the Gwanghwamun Plaza opening. The golden statue is 6.2 meters high (another source gives the statue height as 9.5 meters and yet another, 6.7 meters) and weights 20 tons. The king has one hand raised and another placed on a book. Sides of the statue display all of the hangul alphabet characters. In front of the statue there are small models of a celestial globe, a rain gauge, and a sundial, the invention of which is also traditionally attributed to King Sejong in Korea. While King Sejong is best remembered for his invention of hangul, he is also considered to have been involved in promotion of agriculture, literature, science and technology, as well as Confucian philosophy, in Korea.
Ge Wang
Ge Wang (born November 2, 1977) is a Chinese American musician, computer scientist, designer, author, and professor, known for inventing the ChucK audio programming language 
and for being the co-founder, chief technology officer (CTO), and chief creative officer (CCO) of Smule, a company making iPhone and iPad music apps. He also helped create the Princeton Laptop Orchestra and later founded its Stanford counterpart Stanford Laptop Orchestra, as well as the Stanford Mobile Phone Orchestra. 
Wang is the designer of the Ocarina 
and Magic Piano iPhone apps. Wang is currently an Associate Professor at Stanford University’s Center for Computer Research in Music and Acoustics (CCRMA). Wang is the author of "Artful Design: Technology in Search of the Sublime (A MusiComic Manifesto)", a book on design and technology, art and life, created entirely in the format of a photo-realistic comic book, published by Stanford University Press in 2018.