Frequently Asked Questions How Do I Book A USO DMZ Tour? How Old Must You Be To Go On The USO DMZ Tour? Is It OK To Wear Jeans During A Tour Of The DMZ? What Is The Dress Code For The DMZ Tour? What is the tallest building in Seoul? Directions How To Get From Incheon International Airport To Seoul Station? How To Get From Incheon International Airport To Gimpo International Airport? Geography What are the districts of Seoul? General Information Do I Need A Visa To Visit South Korea? What Currency Does South Korea Use? Where Is Seoul? What Is The Population Of Seoul? What Time Is It In Seoul? Is It Safe To Drink Tap Water In Seoul? What is the Korea country code for making calls? Weather When Does It First Start Snowing In Seoul?