South Korea is where a 600-year-old palace sits in the shadow of glass towers, where Buddhist temples share the hills with the world's fastest internet, and where the food — barbecue, stews, and a thousand tiny side dishes — is a national obsession. Riding the wave of K-pop, K-drama and Korean cool, it is dynamic, spotless and endlessly energetic, yet green mountains and quiet tea houses are never far. Seoul, the mega-city capital, is the beating heart: historic and hyper-modern at once, and one of the most exciting cities in Asia.
What things cost: South Korea is mid-range for Asia — cheaper than Japan, dearer than Southeast Asia. Street food, the subway and many palaces cost little; smart restaurants, bars and hotels add up. The convenience stores and cheap, brilliant eateries keep any budget fed well. When a zone below says 'low', that means low for Seoul.