Sonjuk Bridge is a Koryo-dynasty stone bridge located in Kaesong, North Korea. Built in 1290, it is famous as the place where famed Confucian scholar and statesman Jeong Mong-ju was assassinated, allegedly on the orders of the Yi Bang-won, son of the first king of the Joseon Dynasty, Yi Seong-gye. The bridge was closed to all traffic in 1780 and has since been a national monument. It is 8.35 m long and 3.36 m wide. It was originally named the Sonji Bridge, but was renamed Sonjuk Bridge after the assassination of Mong-ju because bamboo grew where he was killed.
Built during the Joseon dynasty, this small wooden structure houses two enormous stone stele mounted on the backs of lion-turtles, one erected in 1740 by King Yeongjo and the other by King Gojong in 1872. Both commemorate Jeong Mongju's assassination, and praise his loyalty to the Goryeo dynasty.