If you'd like to get a taste for wheeling and dealing, arrange a visit to Daeheung Dongheon. It's where some of the region's most important business deals are struck.
Daeheung Dongheon is located in Yesan. When you're done visiting this commercial building, why not see what else this area has to offer? Daeheungimjonseong Fortress is one interesting place that's within reach.