Nairobi

Nairobi is the only capital on Earth where lions hunt inside the city limits: the National Park begins at the fence line, and on a clear morning you can photograph a rhino with skyscrapers for a backdrop. 'The green city in the sun' sits at 1,795 meters — cool nights, jacaranda Octobers — and runs on a swagger all its own: matatu minibuses painted like galleries, Kikuyu grandmothers selling avocados the size of fists, and the fastest-talking tech scene between Cairo and Johannesburg.

The traveller does the park at dawn — two hours among giraffe, buffalo and the lucky day's lions, back for breakfast —; breakfasts again at the Giraffe Centre, where Rothschild's giraffes lean through first-floor windows; walks Karura, the forest Wangari Maathai defended until it defended the city back; eats nyama choma with the ritual patience it deserves; and rides a matatu at least once, for the art and the bass, before graduating to the calmer buses.

The Guide's practical counsel, honestly: Nairobi asks street wisdom after dark — ride apps at night, phones unflashed, the old 'Nairobbery' jokes respected without being feared —; daylight in the center is busy and fine; the altitude makes evenings genuinely cool, pack a layer; and the city is the continent's great connector — the Mara, Amboseli under Kilimanjaro and the coast all start here, which is why every safari story in a hundred languages begins with the word Nairobi.