The poppies at the Tower of London

On the BBC site we found these images of perhaps one of the most emotive memorials associated with WW1 as expressed in this anniversary year

Nearly four million people are expected to have visited an installation at the Tower of London to mark the centenary of the start of World War One by 12 November.

Blood Swept Lands And Seas Of Red by ceramic artist Paul Cummins has proven so popular there have been calls for it to be extended.

London Mayor Boris Johnson is among those to have suggested the dismantling of the installation, due to start the day after Armistice Day, could be postponed. Thousands of people have also signed an e-petition calling for the poppies to remain.

To allow as many people as possible to see the installation, the hours that the site will be illuminated will be extended. From Friday, the poppies will be lit from 04:30 GMT until dawn and then from dusk until midnight.

See all the images here