Two days is short, so this plan keeps to the sights people come for: the Changing of the Guard, Westminster Abbey, Big Ben and the London Eye on day one; the Tower of London, Tower Bridge, Tate Modern and the Millennium Bridge on day two. Each day stays in one part of town and is planned on foot.
An easy first day outdoors, good for jet lag: a morning walk in St James's Park, the Changing of the Guard at 11:00, the Abbey, Big Ben and the river at dusk.
Wander lakeside paths past pelicans and ducks, with Buckingham Palace rising at the far end of the water. Green calm and royal grandeur sit side by side in one easy stroll.
Stand at the railings as red-tunicked guards march in step, bearskin hats high, with a band playing and the stamp of boots carrying across the forecourt. It's full-dress pageantry you feel as much as you see.
Walk the same stone floors where 40 monarchs were crowned and trace royal tombs and poets' memorials under soaring Gothic vaults. Step inside for a slow hour of history that the rain can't spoil.
Tilt your head back beneath the clock tower at Westminster and wait for the Great Bell to strike. Its chimes roll out over the Palace of Westminster, and you'll feel each hour in your chest.
Rise slowly above the Thames in a glass capsule and watch London spread out in every direction. Pick the champagne option and toast the view as the light fades over the river.
The oldest part of London and the river: the Tower and the Crown Jewels in the morning, lunch nearby, Tower Bridge, then Tate Modern and the Millennium Bridge with St Paul's ahead of you.
Trace two rings of walls and a moat around a fortress begun in 1066, then stand beneath the White Tower that gives it its name. Then see the Crown Jewels glittering behind glass.
Stand on the bridge above the Thames and watch the river slide past the Tower of London's walls. Gothic towers and Victorian steel make every crossing feel like a small adventure.
Step inside a former power station on the Thames and wander through the UK's national collection of modern and contemporary art. Give yourself a long afternoon, because the rooms reward slow, curious looking.
Cross the steel span linking Bankside and the City, with the Thames wide and glinting beneath your feet. Pause mid-bridge and let the river light change around you.
The big museums, the parks and the bridges are free. These need a ticket or a timed slot; book online for the best price.

Walk the same stone floors where 40 monarchs were crowned and trace royal tombs and poets' memorials under soaring Gothic vaults. Step inside for…

Rise slowly above the Thames in a glass capsule and watch London spread out in every direction. Pick the champagne option and toast the view as…

Trace two rings of walls and a moat around a fortress begun in 1066, then stand beneath the White Tower that gives it its name. Then see the Crown…

Stand on the bridge above the Thames and watch the river slide past the Tower of London's walls. Gothic towers and Victorian steel make every…
Tickets for this plan: about £116 per person (food and travel not included).
Enough for the highlights if you keep to one area per day. With a third day add the British Museum, Covent Garden and the National Gallery; see our 3-day plan.
Westminster Abbey, Big Ben, the London Eye and the Changing of the Guard on day one; the Tower of London, Tower Bridge and the South Bank on day two.
Timed tickets for the Tower of London and Westminster Abbey (cheaper online), Tower Bridge and the London Eye. Tate Modern is free.
Westminster Abbey is closed to sightseers on Sundays and the Changing of the Guard only runs on set days, so day one works best on a Monday, Wednesday or Friday. The planner checks every stop for the dates you pick.
Add anything from the map to your trip and the planner rebuilds your days.