AMSTERDAM, NETHERLANDS - SEPTEMBER 30: Queen Maxima of The Netherlands opens the new Micropia Museum by leaving her hand print on a petri dish presented to her by musum director Eveline Hensel on September 30, 2014 in Amsterdam, The Netherlands. Micropia is the worldâs first museum of micro-organisms, the invisible and most powerful life forms on earth. (Photo by Michel Porro/Getty Images)