Belgium's Crown Prince Philippe (L) and Princess Mathilde (2nd L) visit Ground Zero at the World Trade Center in New York June 23, 2011.

Bill Baroni, left, deputy executive director of the Port Authority of New York and New Jersey, shows an image of plans for the World Trade Center to Crown Prince Philippe, right, and Princess Mathilde of Belgium during the couple's visit to the site, Thursday, June 23, 2011 in New York. The royal couple placed a wreath at the site during the visit.