A protest against government plans to ban mood-altering drugs will see hundreds of people inhale nitrous oxide in central London later.
Penultimate Leg of Relay Revealed
The Olympic Flame will stop off at Downing Street, Buckingham Palace and St Paul's Cathedral on the penultimate day of the torch relay.
Day 69 of the national relay - a day before the flame will be used to light the cauldron at the opening ceremony - will see the torch weave its way past many of London's landmarks.
Announcing the route from Camden to the City of Westminster that 175 torchbearers will take, London 2012 chairman Lord Coe said:
"The penultimate day of the Olympic Torch Relay is set to include many of London's iconic landmarks which are famous around the world and give the city its special character.
"I hope that the people from these boroughs come out and line the streets to cheer on the torchbearers as the start of the Games draws near."
See the rest of the route by clicking here.
A man has died at a luxury block of flats in central London after falling down a chimney.
You will soon be able to slide down the Orbit scuplture in London's Olympic Park on the world's longest tunnel slide.
Lambeth's set to become the first area of the UK to ban the use and supply of nitrous oxide in public.
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