Hi,
We will be stopping for a long layover in Seoul on the way to Vietnam. We'll have approx. 12 hours to kill and were thinking about jetting down to Seoul from Icheon Intnl. Airport on the express train or whatever is most convenient.
We're looking for suggestions of what would be highlights or must sees in this time span? Also, any great areas for food stalls or great food haunts,local style? Seoul looks real modern and set up but any gems or savvy traveler tips would be greatly appreciated!!
Thanks!

