The DDP is basically a museum with really cool stuff. I didn't take pictures inside, but I love the outside of it. It has traditional aspects along with modern themes.
On a side note, each of those panels are unique. All of the panels of the building are different! Go visit it and you'll be happy :) There's something for everyone here
The DDP is a huge monument and landmark in Seoul. It's near Dongdaemun market which sells ridiculously cheap stuff -- for the most part it's relatively cheap.
The day was so beautiful so I was able to get great pictures.
Anyways I took these pictures in early April so the weather was good. It's getting hot here, but it's all good.