Less popular, the wall of the fortress of Seoul is worth a detour. Especially if you enjoy a good hike. A secret trail leads you to a stunning view of Gyeongbok Palace, the Blue House and Changdeok Palace. The climb is steep, but the view is incredible. And while you are wandering around, enjoy the blooming flora of the secret garden near Changdeok Palace… which keeps flourishing since the reign of King Taejong in 1400.
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