The five floodgates through which water flowed out of the city in the early Joseon Dynasty have symbolically been reproduced. Under the bridge are King Yeongjo’s eopil (royal autograph), which was presented to royal court officials for their work to dredge the stream. Juncheonga, a hymn praising the king’s achievements written in Chinese characters, and its Korean translations are also under the bridge.
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The Wall of Hope beautifies both sides of the stream between Cheonggyecheon 8 (pal)-ga and 9 (gu)-ga areas. Expressing the sorrow of Korea’s South-North division, the wall is made of tiles created by 20,000 Seoul residents, people from five provinces of North Korea, and overseas Koreans hoping for national unity and reunification. The wall is 50 m long on both sides and 2.2 m high. It is one of the world’s larger ceramic tiled walls.
There are also Historic Laundry Site, the site where Korean women once washed clothes in streamlets has been recreated between Dasangyo and Yeongdogyo bridges.
source: Korea Travel Guide