Free entry, eight million objects, and a security queue nobody warns you about.
Free, crowded, and not daily — where to stand, when to arrive, and the better alternative.
Half an hour above the Thames — book ahead, pick your hour, and watch the forecast.
Crown Jewels, Yeoman Warder tours and a thousand years of history — go at opening.
Coronation church, royal tombs and Poets' Corner — plus the free way in that nobody uses.
Glass floor, Victorian engines and the walkways — plus the free way across.
London's best food market — free to enter, brutal at lunchtime, and worth timing properly.
The real sets, costumes and props — book months ahead, and plan the journey.
528 steps to the dome, a free tour most visitors miss, and services that cost nothing.
Tours of a working parliament — plus the separate, harder ticket for Big Ben.
Free entry, a blue whale in the hall, and dinosaurs — with a queue nobody mentions.
State Rooms open for a short season only — plus what to do when they are shut.
Free modern art in a power station — plus a free viewing level most people miss.
Western Europe's highest viewpoint — book for clear weather and read what's included.
The wartime bunker left as it was — timed tickets, and a guide worth thinking about.
Diana, royal fashion and Queen Victoria's rooms — with free gardens all around.
Free, world-class, and small enough to actually finish — the best two hours in London.
Tudor kitchens, baroque state rooms and sixty acres of gardens — allow a full day.
A covered market, street performers and the West End on the doorstep — free and always open.
Street food, vintage and canalside chaos — free, open daily, best on a weekday.
The Prime Meridian, the longitude clocks and the best view in Greenwich — with a caveat.
A riverside day out where most things are free — and the boat is half the pleasure.