Freedman’s Bank, Washington DC An armoured and unceremonious exit (right) from the White House in the back of the Treasury Annex, now known as Freedman’s Bank. The bank connects to the White House via two tunnels – one under Pennsylvania Avenue to the Treasury Building (left), the second under East Executive Avenue from the Treasury Building to the East Wing of the White House. According to the White House Historical Association, the escape tunnel to the Treasury went out of favour after the construction of the Presidential Emergency Operations Center beneath the White House