These 2-3 minute videos are well-made shorts that capture particular outstanding features of world heritage sites in Korea. There are numerous videos, here is a sample of some that are worth watching. I really like the video on Suncheon Bay, probably Korea's strongest nomination on their tentative list.
Unesco SitesJeju Volcanic Island and Lava Tubes URLHwaseong Fortress URLBulguksa Temple URLHahoe Village & Byeongsanseowon URL Gyeongju (Namsan Mountain) URLChangdeokgung Palace Complex URL
Tentative SitesConfucian Academies URLSouthwestern Coast Tidal Flats (Suncheon Bay) URL
Potential Tentative Sites (Buddhist Temples)Tongdosa Temple URLHwaeomsa Temple URLBeopjusa Temple URL