London Olympic rings unveiled
London 2012 chairman Lord Coe and mayor Boris Johnson were among the VIPs who watched as 25 metre wide and 11.5 metre tall Olympic were lowered into place on Tower Bridge.
Boris vows transport will 'cope very well' during Olympics
London Mayor Boris Johnson vowed that London transport will "cope very well" during the Olympic Games.
Speaking on a boat on the River Thames after the Olympic rings were lowered into place on Tower Bridge, Mr Johnson said: "I'm convinced that we have done everything that we can.
"The venues are ready, they are under budget, the Park is looking fantastic already, the policing situation is great, you've got all the security in place, the transport network has had masses of investment and I know that it's going to cope very well."
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Mary Nightingale takes a look around the Olympic Park
With only a month to go until the London 2012 Games, ITV News has been to take a look around the Olympic Park.
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Olympic rings unveiled on Tower Bridge
Giant Olympic rings were unveiled at Tower Bridge to mark the one month countdown to the London 2012 Games.