Dutch King Willem-Alexander (2nd R) and Queen Maxima stop to view the pool of reflection during a visit to the Australian War Memorial in Canberra on November 2, 2016. 
The Dutch royals are in Australia to mark the 400th anniversary of explorer Dirk Hartog's landing in Western Australia and the unveiling of Hartog's plate, which is the oldest existing relic of European exploration in Australia. / AFP / POOL / MARK GRAHAM        (Photo credit should read MARK GRAHAM/AFP via Getty Images)