Churchill’s underground bunker full tour, secret room included

A private WC that people thought was Churchill’s bathroom included instead a high-tech telephone boot to call the US Presidents during the war (Franklin D. Roosevelt, then Harry S. Truman). Go here to check it out: 12:30 During the Second World War, Prime Minister Winston Churchill and his cabinet went underground to continue meeting and planning the war effort. A maze of tiny bunker rooms still sits beneath what is now the Treasury building. Inside what everyone believed was Churchill’s private toilet was a custom-encrypted telephone (provided by Bell labs called SIGSALY or Green Hornet) that connected the prime minister directly to the US president, wrapping their voices in white noise (only the receiver knew the frequency in order to decode it and get a clear voice). The Cabinet War Rooms became fully operational on 27 August 1939, a week before Britain declared war on Germany, but Churchill wasn’t interested in going underground until Germany’s Blitz bombing offensive began in Se