A must see while in Seoul. The changing of the guard at this Joseon dynasty palace happens numerous times throughout the day; consult the schedule. Enjoy the colors and the pageantry, and then explore the palace grounds. A lot of great historical information here. Insiders tip: if it is raining, too hot or cold, or too crowded, the best view of the ceremony from inside is surprisingly from the Dunkin' Donuts across the street from the palace gate.