I wouldn't say the vegetation in Korea is like Wisconsin. There are many rice paddles and farmland, but Korea is mountainous with the population living In 25% of the land bc of the extreme mountain regions.
Rice paddies aside, we are all from Wisconsin (well, not my brother in law) and we looked at the scenery on the drive from Incheon to Osan and that's what we said. After all, Koreans love their ginseng- which they grow there- and Marathon County, Wisconsin is the home of ginseng production in the US!
We stayed at that Dragon Hill Lodge in Seoul and my ssiter specifically booked us into a tower room; she swears those are nicer rooms.
Believe it or not there is a very nice German or Austrian restaurant in Itaewon! We found it by accident and had a wonderful meal there. Chef Meili's- something like that.
The Namas Tower is fun, the War Museum is excellent and wear excellent walking shoes if you go to the National Museum.