Museum of Contemporary Arts MAC's director Laurent Busine (L) and Belgian Queen Mathilde visit the "La Salle de Pendus" exhibition by Christian Boltanski at the MAC's in Hornu on July 15, 2015. AFP PHOTO / BELGA / LAURIE DIEFFEMBACQ == BELGIUM OUT == RESTRICTED TO EDITORIAL USE, MANDATORY MENTION OF THE ARTIST UPON PUBLICATION, TO ILLUSTRATE THE EVENT AS SPECIFIED IN THE CAPTION == (Photo credit should read LAURIE DIEFFEMBACQ/AFP via Getty Images)
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