Blood Swept Lands and Seas of Red was a public art installation created in the moat of the Tower of London, England, between July and November 2014.

There were a series of designed elements which added drama, height and movement to the installation: the "Weeping Window" flowing out of a window in Legge's Mount in the West Moat, (which became the iconic image), "Over the Top", a cascade of poppies down the wall on the wharf side of the moat and the "Wave", a free-standing twisted metal sculpture covered in poppies which curled over the main causeway into the Tower.

[8] The 497,000 kg of the Etruria Marl-based Etruscan red earthenware used, as well as the majority of the manufacturing equipment and materials, were supplied by Potclays Limited in Stoke-on-Trent.

A team of about 17,500 volunteers put the poppies in place, overseen by Tom Piper and Yeoman Warder Jim Duncan, making this a true public artwork.

[13] Members of the public had been able to pre-order the ceramic poppies for £25 each, with a share of the proceeds (estimated at more than £15 million[14]) going to six service charities: COBSEO, Combat Stress, Coming Home, Help for Heroes, the Royal British Legion and SSAFA.

[2] At around sunset each day between 1 September and 10 November, the names of 180 World War I service personnel, nominated by members of the public to appear on a Roll of Honour, were read aloud by a Yeoman Warder or guest reader, followed by the Last Post bugle call.

[22][23] A campaign was launched in December 2014 to bring the sculptural elements to Stoke-on-Trent during the tour itinerary as the majority of materials and a large number of ceramic poppies were manufactured in the city.

A similar tribute also designed by Piper, Beyond the Deepening Shadow, in which 10,000 flames were lit, again at the Tower of London, was installed to mark the centenary of the end of the war.