I’ve been walking down this block most workdays for the past year, and it was only this morning that I noticed there are wind chimes hanging from many of the trees in Mount Vernon Square, on the grounds of the Carnegie building, now home to the Historical Society of Washington D.C. This set of chimes is barely audible above the ruckus of 8:45 A.M. traffic. But even so, it’s nice knowing that it’s there.