Presidential Emergency Operations Center

The Presidential Emergency Operations Center (PEOC) is the bunker most often portrayed in popular culture. 
The infamous photograph of former President George W. Bush meeting with the National Security Council following the terrorist attacks of September 11, 2001, offers a glimpse into one of the most secure facilities in the nation.
During this catastrophe, former Vice President Dick Cheney, his wife, and many other high-ranking government officials (mainly cabinet members) were promptly escorted to the isolation and security of the PEOC. 
It allegedly lies beneath the East Wing of the White House, the center of the executive branch and home of the president.