The headquarters is designed as a fortress hidden in the center of a block of buildings with Brownstone apartments serving as the exterior facade. On one end of the block is a public parking garage (complete with machine gun bays hidden in the ceiling). On the other end is a three-story whitestone building. The first and second floors of the whitestone are occupied by The Masque Club, a private, members-only "key club" (like the Playboy Club) in which the waitresses wear masks. On the third floor are located the offices of U.N.C.L.E.'s propaganda front, a charity fundraising organization.