100 years ago, Londoners gathered in Piccadilly Circus to celebrate the end of the First World War – a conflict that had claimed the lives of over 1 million British and Commonwealth service people. To mark the Armistice centenary in November 2018, we brought Piccadilly to a standstill once again taking over the iconic advertising sign for the first time– and compelled a whole city to engage with the sacrifices of the past.