Here is one thing you might not know about the Bullitt Center, which has its grand opening on Monday, April 22, at 11 a.m. The building's large windows are intelligent.

  • John Stamets

If you pop one open for fresh air, the window waits for about 30 or so minutes and, realizing that you have forgotten about it, forgotten that it is open, forgotten that this openness wastes energy, it quietly closes itself behind your back. What a lovely image that is: A window secretly closing itself. Indeed, you can almost see the sudden reduction of street sounds as it shuts with robotic ease. Public tours of the very green building begin an hour after a ribbon is cut at 11 a.m.