Danish Crown princess Mary (R) and Crown Prince Frederik (2nd R) pose with Japanese Princess Takamado (2nd L) and her daughter Princess Tsuguko (L) at the official opening of the exhibition about Greenland, "Spiritual Greenland" in Tokyo on March 27, 2015. The Danish royal couple are on a three-day visit to promote Greenland.    AFP PHOTO / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)