London Eye

London Eye

Half an hour above the Thames — book ahead, pick your hour, and watch the forecast.
Borough Market

Borough Market

London's best food market — free to enter, brutal at lunchtime, and worth timing properly.
Tate Modern

Tate Modern

Free modern art in a power station — plus a free viewing level most people miss.
The Shard

The Shard

Western Europe's highest viewpoint — book for clear weather and read what's included.
Covent Garden

Covent Garden

A covered market, street performers and the West End on the doorstep — free and always open.
Greenwich

Greenwich

A riverside day out where most things are free — and the boat is half the pleasure.