Dongdaemun Design Plaza (Ddp) Is A Blend Of Traditional Buildings, Relics And Cutting-Edge Modern Multicultural Facilities. Seoul Fortress, Igansumun Water Gate (Floodgate Channeling Water From Namsan Mountain To Cheonggyecheon Stream And Seoul Fortress), Dongdaemun History Hall, The Dongdaemun Excavation Site, Dongdaemun Sports Memorial Hall, Event Hall, And Design Gallery Can All Be Found At The Ddp.