Trade union activists say their annual May Day march will commemorate two of the titans of their movement; the former leader of the RMT Bob Crow and the former Labour MP Tony Benn.
The London May Day Organising Committee said it wanted to pay tribute to their work but also put across the message that the movement should not just mourn but also organise to fight for rights for workers.
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The new design is inspired by Westminster Cathedral.
Just 200 yards from Harrods, the one bedroom flat is significantly lower than the current market rate for the prestigious area.
A documentary on the career of the late London singer Amy Winehouse will be broadcast live this evening at half six.