The names of all 52 of those who lost their lives in the 7/7 attack were read out during a memorial in St Paul's Cathedral.
Pink, red and white rose petals fell from the famous dome as the church fell silent to honour the dead.
Little did an art teacher from Oxfordshire expect to spend his morning in London saving lives in the aftermath of terrorist attacks.
10 years on, George Psaradakis has given his first interview, recalling the events of July 7 2005.
Dozens of plots have been thwarted since July 7, 2005, but are we any less vulnerable to terror attacks?