Then & Now: Photos Remember World War I On the 100th Anniversary

In this composite image a comparison has been made of Scotland Yard. A gated barrier runs near Scotland Yard on March 17, 2014, in London, England. It is placed over an image of a large crowd of men responding to a call by the War Office for married men ages 36 to 40 to become munition workers. They gathered outside the Inquiry Office at Scotland Yard in London, England, during World War 1. (Getty)