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 Belgium's Crown Prince Philippe, center, and Crown Princess Mathilde during the couple's visit to the site, on June 23, 2011, in New York. The royal couple, who traveled to New York on Wednesday for a two-day tour to highlight their country's cultural and economic ties with the U.S., placed a wreath sent by Philippe's parents, King Albert II and Queen Paola of Belgium, at the site.
Bill Baroni, second from 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 Belgium's Crown Prince Philippe, right, and Crown Princess Mathilde during the couple's visit to the site, on June 23, 2011, in New York. Joe Daniels, far left, is the President and CEO of the National September 11 Memorial and Museum.
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 Belgium's Crown Prince Philippe, right, and Crown Princess Mathilde during the couple's visit to the site, on June 23, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde visit Central Park, on June 22, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde visit Central Park, on June 22, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde, right, scan the menu on the Wafels & Dinges food truck with Belgian Prime Minister and Minister of Foreign Affairs Steven Vanackere during a visit to Central Park, on June 22, 2011, in New York.
Belgian Prime Minister and Minister of Foreign Affairs Steven Vanackere, left, reaches into his wallet as Crown Prince Phillippe and Crown Princess Mathilde enjoy treats from the Wafels & Dinges food tuck during a visit to Central Park, on June 22, 2011, in New York.
Belgian Prime Minister and Minister of Foreign Affairs Steven Vanackere, left, reaches into his wallet as Crown Prince Phillippe and Crown Princess Mathilde enjoy treats from the Wafels & Dinges food tuck during a visit to Central Park, on June 22, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde enjoy treats from the Wafels & Dinges food tuck during a visit to Central Park, on June 22, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde visit Central Park, on June 22, 2011, in New York.
Belgium's Crown Prince Phillippe and Crown Princess Mathilde visit Central Park, on June 22, 2011, in New York.
From left, Minister of Economy Jean-Claude Marcourt, of the Walloon Government, Belgian's Princess Mathilde and Prince Philippe and Steven Vanackere, Belgian Deputy Prime Minister and Minister of Foreign Affairs, visit Central Park, on June 22, 2011, in New York.
Belgium's Crown Princess Mathilde and Crown Pince Philippe walk through Central Park with Belgian Deputy Prime Minister and Minister of Foreign Affairs Steven Vanackere, second right, and Minister of Economy Jean-Claude Marcourt of the Walloon Government, on June 22, 2011, in New York.