Yes, the Washington Monument Has 185 Windows (But Only ~50 Are Visible)

The Washington Monument contains 185 small windows cut into the marble spiral staircase interior. However, only about 50 are visible from the exterior—the rest face the central stairwell or are obscured by structural elements. The windows provide ventilation and minimal light for the 897-step climb (now supplemented by elevator). They're a subtle but functional feature of the 555-foot obelisk.