Duke Energy Center flashes its lights every hour on the hour on Tuesday May 03, 2016.
Duke Energy Center flashes its lights every hour on the hour on Tuesday May 03, 2016. Robert Lahser rlahser@charlotteobserver.com
Duke Energy Center flashes its lights every hour on the hour on Tuesday May 03, 2016. Robert Lahser rlahser@charlotteobserver.com