Samjeondo Monument

The Samjeondo Monument is a rectangular stone stele in Songpa District, Seoul, rising nearly 4 meters tall. Its surface displays carefully engraved characters in three East Asian writing systems, visible side by side on the weathered stone.

The stele was built in 1639 following a peace settlement between the Joseon kingdom and the Qing dynasty at a crossing over the Han River. Its construction marked the end of a conflict that would shape political relations on the Korean Peninsula for decades.

The stone carries the name of a historic event at the confluence of three waterways and displays writing in several languages documenting diplomatic relations. Visitors can view the different scripts on its surface, which make visible the meeting of several ruling powers in East Asia.

The memorial stands in a small area near Jamsil subway station, surrounded by panels with background information. The site can be reached on foot from the station in a few minutes and is accessible at all times.

After restoration work in 2010, the stone was moved to a location closer to the original spot where a ferry once crossed the Han River. This shift helped make the geographical meaning of the place recognizable again.