Every guide tagged UNESCO, for a trip to South Korea.
The eastern side of Jeju holds a tuff cone rising straight out of the sea and a lava tube you can walk inside. How to fit both into one day, in the right order, and what to wear underground.
A Confucian village in a river bend where an aristocratic clan lived for six hundred years, a satirical masked dance, and the town's two great dishes.
Royal burial mounds in the middle of town, an observatory, a UNESCO temple in the hills, and a city flat enough that a bicycle is the obvious way round it.
Nearly six kilometres of eighteenth century fortress wall with a walkway along the top, a palace inside it, and a working Korean city around it.