" This is one of eight staircases in the White House. There are also three elevators, twenty-eight fireplaces, one hundred and thirty-two rooms, and four hundred and twelve doors.” “Why are there so many more doors than rooms?” I asked. “Er . . . ,” Kimmy said, thrown. “I have no idea. But I do know that it takes five hundred and seventy gallons of paint to cover the entire exterior! "

― Stuart Gibbs , Spy School Secret Service (Spy School, #5)