Scale Replicas Is It True That There Is Another Scale Replica Of The White House A Mile Underneath It In Case Of A War?

Is it true that there is another scale replica of the white house a mile underneath it in case of a war? - scale replicas

Our teacher told us that under the white house a white house ... literally ... Answer ... in case of war.
I do not know if it will work underground or raised or what, but said he was there ...


Is it true?