DLR
A free day out on the DLR
5 genuinely free places across 2 stops. Listed in line order, so you can ride it end to end and stop off as you go.
A Victorian covered market in the City, with ornate ironwork and cobbles — the public arcade is free and open 24/7, even though individual shops keep their own hours.
Free 360° views over the City from the top of the 'Walkie-Talkie' — but you must book a timed ticket online in advance (released a few weeks ahead); turning up without one usually means no entry.
London's oldest Royal Park, with a free hilltop view over the Thames, Canary Wharf and the Old Royal Naval College — the Royal Observatory's meridian courtyard next door is ticketed, but the park view is free.
The world's largest maritime museum collection, in Greenwich Park — free entry, including Nelson's uniform from Trafalgar; some touring exhibitions charge.
The Queen's House, Greenwich ↗
England's first classical building, designed by Inigo Jones, with the Tulip Stairs and a free art collection including a rare portrait of Elizabeth I.
Ride a different line from the Tube map of free things to do, or check costs, parking and opening times in the full London guide. Straight-line station matches, not walking-route promises — use TfL for the journey itself.