Changdeokgung in Seoul - Changdeokgung is the most beautiful of all the royal palaces in Seoul. It's the epitome of Korean traditional architecture balanced with a natural landscape. "Due to its historical and cultural importance, entry to the palace has until recently been through guided tours only. Unguided tours are now permitted one day a week." [Seoul Selection Guides]. To get there: Anguk Station (Subway Line 3, Exit 3). Go straight for 5 minutes.