PHOTOS Underwater discovery reveals ancient celadon, shipwreck fragments off Korea's west coast

The only surviving wooden ship hull from the early years of the Joseon Dynasty (1392-1910) is being salvaged off the coast of Taean, South Chungcheong Province. First discovered underwater alongside some 150 pieces of "buncheong" stoneware in 2015 by the National Research Institute of Maritime Heritage, the cargo vessel is believed to have sunk around 1420. Since 2009, the institute has uncovered traces of three other shipwrecks from the Goryeo Dynasty (918-1392) in the same waters. Courtesy of National Research Institute of Maritime Heritage

Bundles of celadon bowls lie half-buried in the soft seabed off the coast of Taean, South Chungcheong Province, along with wooden oars and fragments of a vessel presumed to be from the Goryeo era (918-1392). The underwater relics were newly discovered this year during a sonar survey conducted by the National Research Institute of Maritime Heritage. Courtesy of National Research Institute of Maritime Heritage