Denmark's Crown Prince Frederik (bottom R) looks up at photographers while viewing a Lego model of the Frederiksstaden, the residence of the Danish royal family, during the opening of an exhibition titled A Modern Household, at the Danish Cultural Center in the 798 art district in Beijing on September 23, 2017.
Crown Prince Frederik is on a four-day visit to China. / AFP PHOTO / GREG BAKER        (Photo credit should read GREG BAKER/AFP/Getty Images)