Beijing's central axis on foot: the 7.8-kilometre line the whole old city hangs on

At 6:40 the Drum Tower is still shut, but the square in front of it is far from empty. Old men walk backward for their knees, a cart sells jiānbing (煎饼, a folded egg crêpe) for eight yuan, and somewhere under your feet the oldest street plan in the city begins its long straight run south — a line you cannot see yet, but will spend the whole day following.

The line that holds the city

Beijing was not laid out around a square or a river but around a single north–south spine, the Zhōngzhóuxiàn (中轴线), drawn in the Yuan dynasty in the 1260s and stretched to its present length under the Ming. It runs 7.8 kilometres, from the Bell Tower in the north to Yongdingmen gate in the south, and almost everything the old maps care about is threaded onto it: gates, drums, a palace, a hill, a market street.

In July 2024 the axis and its fifteen constituent sites were inscribed as a single UNESCO World Heritage property, which is the official way of saying what any older resident will tell you for free. Walked briskly and without stopping, the whole line takes about three hours. Walked properly — with a bowl of something, a climb, a wrong turn into a hutong — it is a full and satisfying day.

老北京人说，四九城的规矩都挂在这条线上。

Start where the drums keep time

Begin at the top, at the Gǔlóu (鼓楼, Drum Tower) and its twin the Zhōnglóu (钟楼, Bell Tower), which face each other across a paved plaza reached from Line 8's Guloudajie station. A combined ticket is thirty yuan; the drums open at nine, and several times a day a short drumming performance sends a flat, carrying boom down the plaza. Climb the steep interior stair for the view straight down the axis — the one direction the roofs all seem to lean.

Between the towers and the palace sits the Wànníng Qiáo (万宁桥), a low stone bridge from 1285 that most people cross without noticing. Lean over the upstream rail and you will see the zhènshuǐshòu (镇水兽), Yuan-era stone water-beasts crouched at the canal's edge, worn smooth. For breakfast first, walk two minutes east to Yáo Jì Chǎogān (姚记炒肝) on Gulou East Street: a bowl of chǎogān (炒肝, stewed liver and intestine in a garlicky starch broth) runs about fifteen yuan, taken with a couple of steamed pork buns.

The palace, seen from the hill

Keep south and the axis delivers you to Jǐngshān Gōngyuán (景山公园), the artificial hill raised from the earth dug out to make the palace moat. Entry is two yuan and the gates open at 6:30. The climb to the Wànchūn Tíng (万春亭), the yellow-roofed pavilion at the summit, takes ten minutes and buys the single best sight in the city: the Forbidden City's sea of golden roofs falling away to the south, dead-centre on the line, with the towers you started from behind you.

Directly below lies the Gùgōng (故宫, the Forbidden City) itself. Resist going in mid-walk — it is a half-day of its own and pulls you off the axis. If you want it, book a separate day: tickets are sixty yuan from April to October and forty in the colder months, must be reserved online in advance against your passport, entry is only through the Meridian Gate, and it closes on Mondays.

Down through the gates

South of the palace the axis passes the Tiān'ānmén rostrum and then reaches Zhèngyángmén (正阳门), the tall grey gate everyone calls Qiánmén (前门). Behind it opens Qianmen Street, now a pedestrian promenade where a reproduction dāngdāng chē (铛铛车, the old clanging tram) trundles the length of it for twenty yuan. The buildings are polished and touristic; the reward is turning off it.

Duck west into Dàshílànr (大栅栏), a knot of narrow commercial hutong older than the shopfronts suggest. This is luzhu country: at a counter like Ménkuàng Lúzhǔ (门框卤煮) a bowl of lǔzhǔ huǒshāo (卤煮火烧) — offal and flatbread in a dark, long-simmered broth — costs around thirty yuan and is exactly the kind of thing the axis was built over centuries to feed.

The quiet south end

The last third of the walk is the emptiest, and the better for it. The line runs through Tiānqiáo (天桥), once the city's raucous district of acrobats, storytellers and cheap opera, now anchored by the Tianqiao Performing Arts Center where you can still catch an evening acrobatics or crosstalk show for well under two hundred yuan. The crowds thin; the shops sell hardware and steamed bread rather than souvenirs.

The axis ends at Yǒngdìngmén (永定门), the southern gate, demolished in the 1950s and rebuilt on its footprint in 2005. It stands alone on a lawn, smaller than the northern towers, and from its base you can look back up the entire length you have walked. The Temple of Heaven lies a short way east if your legs have anything left; the nearest exit home is Line 8 again, which has shadowed the whole route underground all day.

Getting there, and the one thing to skip

The walk needs almost no planning because the subway does the work: Beijing's Line 8 traces the axis end to end, from Guloudajie in the north to Zhushikou, Tianqiao and Yongdingmenwai in the south, so you can drop out and rejoin at any point for a fare of three to five yuan, paid by scanning a ride code in the metro app. Start by eight in the morning to keep the light and the calm on your side.

Go in spring or autumn, and avoid the two national holiday weeks — the first seven days of October and the start of May — when every stop on the line is shoulder to shoulder. The single mistake to avoid is trying to fold the Forbidden City's interior into the same day: it forces you off the spine for hours and leaves you too tired to finish the southern gates, which are the part almost no visitor ever sees. Keep the line whole, and let the palace wait.