What is it?

Seoul is South Korea's electric capital, a city of ten million people where Joseon-dynasty palaces with sweeping tiled eaves sit a subway stop from glass towers and holographic billboards. Wander the hanok alleyways of Bukchon in the morning, watch the changing of the guard at Gyeongbokgung in full crimson-and-blue regalia, then dive into Gwangjang Market for mung bean pancakes hissing in oil and mounds of ruby-red kimchi. By night the city transforms: Hongdae buskers draw crowds until 2am, Gangnam's karaoke rooms glow neon, and tables in Mapo fill with strips of pork belly grilling over charcoal beside bottles of green soju. Threading it all is the Han River, its bridges lit like ribbons, and the granite peaks of Bukhansan rising unexpectedly at the city's northern edge. What sets Seoul apart is the sheer velocity of contrast — hypermodern, deeply traditional, obsessive about coffee, skincare and street food all at once.

Where is it?

Seoul sits in the northwest of South Korea, roughly an hour from Incheon International Airport by express train and just 50km from the DMZ border with North Korea. Base yourself in Myeongdong or Jongno for palaces and shopping, Hongdae for nightlife and student energy, or Itaewon for international dining. Spring (April–May) brings cherry blossoms along the Han River and Yeouido, while autumn (late September–November) offers crisp blue skies and flaming maple foliage on Bukhansan — both far more comfortable than the humid, rainy July–August monsoon.

What makes it worth it?

Seoul is the rare megacity that rewards both planning and pure wandering — travellers routinely arrive for three days and extend to a week. There's a particular magic in climbing Namsan at dusk, watching the whole valley of lights switch on beneath you, or sitting cross-legged on a market stool while an ajumma insists you try one more piece of tteokbokki. "I came for the food and stayed for the feeling," is a sentiment repeated endlessly; visitors talk about how safe it feels to walk anywhere at 3am, how efficient everything is, how genuinely warm strangers can be once the ice breaks. The city rewires your sense of what urban life can look like — 24-hour spas, delivery in 20 minutes, temples where monks still chant at dawn. Years later you'll remember the smell of grilling galbi, the hush inside Jogyesa temple under paper lanterns, and the first time you tasted properly fresh kimchi.

How accessible is it?

Seoul is one of the world's easiest big cities to travel in. The subway is immaculate, signposted in English, and costs around ₩1,500 (£0.90/$1.10) per ride with a rechargeable T-money card; taxis are cheap and plentiful. Many nationalities — including UK, US, EU, Australia and Canada — enter visa-free for 30–90 days, though most need an online K-ETA authorisation (about ₩10,000), so check before flying. Budget travellers can manage on £50–70/$60–90 a day including hostel beds and street food, while mid-range stays with restaurant meals run £120–180/$150–230 daily; luxury hotels in Gangnam climb well past that. English is limited outside tourist zones but translation apps, Naver Map and Kakao Metro (Google Maps is restricted here) solve almost everything. The city welcomes over 10 million international visitors a year, and nothing requires advance booking beyond DMZ tours and popular restaurants.