My Night in the Sistine Chapel

The heavy bronze doors at the museums’ main entrance are pulled shut every afternoon at 4 p.m. and locked with a key numbered 2,000. Over the next two hours, until the exit doors are also closed, the last visitors proceed through the hallways. Behind them, here and there, lights begin to dim. Metal detectors power down. At the glassed-in security station in the Atrium of the Four Gates, departing guards punch time cards. Behind the glass, alongside a crucifix and a photograph of Pope Francis, a flatscreen presents live images from security cameras. The screen gives the enclosure a quiet glow.