There's really no such thing as a dream vacation town on this peninsula but there are a few cool places to go outside the city. A trip to the North Korean border is hands down the best day trip out of Seoul. Sign up with a tour organization, such as the U.S.O. or the Panmunjom Travel Center, licensed to take foreigners to the world's last cold war frontier. The trip will take the better part of a day and will cost about $70, for which you can look a grim faced North Korean solider in the eye.

• 1. DMZ
  Panmunjom, South Korea More Info