Dutch King And Queen Visit Washington, Attend Global City Team Challenge Event [Getty Images]

WASHINGTON, DC - JUNE 01: Queen Maxima of the Netherlands tours a "Global City Team Challenge" event to launch the "Global Smart City Coalition" June 1, 2015 in Washington, DC. King Willem-Alexander and Queen Maxima are visiting the United States for three days, the first time since ascending to the throne. (Photo by Win McNamee/Getty Images)

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