On 7 July 2009 a GBP 1 million permanent memorial to the victims of the 7 July 2005 London bombings was unveiled in the city’s Hyde Park. Fifty-two people were killed and hundreds more injured when suicide bombers detonated backpacks onboard three Underground trains and a bus. Families of those killed will gather later to see it publicly revealed. Relatives who have seen the 52, 3.5m tall stainless steel pillars – grouped to represent the attack sites – say they form a “fitting tribute”. Architects Carmody Groarke wanted to convey the random nature of the loss of life – how it could have been anyone travelling in London that day. Director Kevin Carmody said the firm worked closely with the families through monthly liaison meetings to ensure the finished product was what they required.