Christmas Tree Ship arrives at Navy Pier

<div class="meta "><span class="caption-text ">The Christmas Tree Ship arrived in Chicago on December 6, 2013. The Coast Guard Cutter Mackinaw left its port in Cheboygan last month and sailed Lake Michigan to arrive at Navy Pier. (WLS Photo)</span></div>
December 6, 2013 8:04:16 AM PST