Millions stand in silent tribute to bombing victims
Across Europe other cities, too, fell silent - some with their own horrific memories of similar atrocities.
On London Underground many staff wore black armbands as a mark of respect, and on mainline stations, in shops and offices, work ceased as the carnage of a week ago was recalled.
Airports came to a standstill, taxis pulled over to the sides of roads and many heeded the appeal for people to leave their workplace to stand on the street in silent tribute to the 52 victims of the bombings.
The Queen stood in silence in the forecourt of Buckingham Palace.
The Prime Minister observed the silence in the garden of No 10, where he had been presenting bravery awards to police officers.
At Scotland Yard, the Home Secretary Charles Clarke, stood with the Metropolitan Police Commissioner Sir Ian Blair for the two minutes silence.
Hundreds of Scotland Yard staff lined the street outside the Met's headquarters for the silence, the start and end of which was announced by a police siren.
- 1 Tunisia hotel attack: Locals form 'human shield' to protect hotel from gunman Seifeddine Rezgui
- 2 Greece crisis: Alexis Tsipras accepts troika bailout proposals with conditions
- 3 German ethics council calls for incest between siblings to be legalised by Government
- 4 French woman dies in freak bungee jumping accident
- 5 Facebook rainbow profile pictures likely being tracked by social network
Tunisia hotel attack: Locals form 'human shield' to protect hotel from gunman Seifeddine Rezgui
Russian officials ban yoga because it's too much like a religious cult
Greece crisis: Alexis Tsipras accepts troika bailout proposals with conditions
German ethics council calls for incest between siblings to be legalised by Government
Britain First insist their videos aren't racist in bizarre attack on comedian Jason Manford
The moment a Queen's Guard soldier lost it and drew his gun at annoying tourist
Greece crisis: IMF was pushed around by Angela Merkel and Nicholas Sarkozy – and now it is being humiliated
Greece crisis: The wider lesson is that it’s time to abandon this failed experiment in currencies
'I wish the BBC would stop calling it Islamic State' – David Cameron unleashes frustration at broadcaster
Pentagon accuses Russia of 'playing with fire' over nuclear threats towards Nato
They are neither a 'state' nor 'Islamic': Why we shouldn't call them Isis, Isil or IS
£20000 - £25000 per annum: Recruitment Genius: This is an exciting opportunity...
£30000 - £35000 per annum: Recruitment Genius: This is a 3-4 month pro rata fi...
£16000 - £26000 per annum: Recruitment Genius: A Telesales Executive is requir...
£25000 per annum: Recruitment Genius: This is an exciting opportunity to join ...