King Willem-Alexander (L) and Queen Maxima of the Netherlands arrive at the Mercedes-Benz museum in Stuttgart, southwestern Germany, on June 4, 2013. AFP PHOTO / THOMAS KIENZLE (Photo credit should read THOMAS KIENZLE/AFP/Getty Images)
King Willem-Alexander (L) and Queen Maxima of the Netherlands arrive at the Mercedes-Benz museum in Stuttgart, southwestern Germany, on June 4, 2013. AFP PHOTO / THOMAS KIENZLE (Photo credit should read THOMAS KIENZLE/AFP/Getty Images)