There was a secret underground bunker beneath the White House during World War II. - Apparently.
Built between 1942 and 1944, the Presidential Emergency Operations Plan, or "The Presidential Emergency Operations Plan for Continuity of Government," included a secret underground bunker beneath the White House. The "Emergency Operating Center" was designed to be a self-sustaining facility with its own power, water, and air supply. This hidden bunker was meant to be a safe place for the President and key officials to operate in the event of a national emergency or attack on Washington D.C.