Dutch King Willem-Alexander and Queen Maxima appear on the balcony of the Royal Palace with their children, from left: Catharina-Amalia, Ariane, and Alexia in Amsterdam, The Netherlands, Tuesday April 30, 2013. Around a million people are expected to descend on the Dutch capital for a huge street party to celebrate the first new Dutch monarch in 33 years. (Photo by Dusan Vranic/AP Photo)
