Mar-a-Lago, the stunning 17-acre estate President Donald Trump calls his "Winter White House," is equipped with three bomb shelters built during the Cold War.
But the mostly-forgotten shelters — some used for storage — have taken on a somewhat renewed importance as the commander-in-chief uses the lush, palm tree-dotted property to relax and receive domestic and world leaders.
The Palm Beach Daily News reports Post cereal heiress Marjorie Merriweather Post, who built Mar-a-Lago with her financier husband E.F Hutton in 1927, had the shelters installed during the Korean War in the early 1950s.
They are hidden among the hedges of the property, and may be the least glamorous part of the spread which boasts 58 bedrooms, 33 bathrooms, a 29-foot marble dining table, 12 fireplaces, six tennis courts, and a gym.
Bomb shelters are not new among dignitaries in Florida.
When John F. Kennedy became commander-in-chief in 1961, the military built him a secret nuclear shelter and command post on Peanut Island, a 79-acre expanse at the mouth of the Lake Worth Inlet in Palm Beach County.
Until 2015, the Kennedy family owned an oceanfront estate less than two miles from Mar-a-Lago, where JFK vacationed. Designed in 1923 by noted architect Addison Mizner, it was bought by Kennedy patriarch Joseph P. Kennedy in 1933.