Day 1 — Westminster: postcard-perfect London
🚶 Start on the Thames embankment by the Palace of Westminster and Big Ben: water, Gothic architecture, and political life come together in a single frame here. Walk to Westminster Abbey (a majestic interior and coronation stories), then to Trafalgar Square with Nelson’s Column and the lions — you feel the city’s scale here. In the afternoon, pop into the National Gallery at the edge of the square (free entry to the permanent collection) — from Leonardo to Van Gogh just steps from street musicians. The finale is a calm walk down Whitehall to the Churchill War Rooms: underground — a map of war and the prime minister’s office; above ground — evening light in which London feels especially polite.