MADRID, SPAIN - NOVEMBER 20: Queen Letizia of Spain (L) and Queen Rania Abdullah of Jordan (R) visit the Molecular Biology Center "Severo Ochoa" at the Autonoma University on November 20, 2015 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)
MADRID, SPAIN - NOVEMBER 20: Queen Letizia of Spain (L) and Queen Rania Abdullah of Jordan (R) visit the Molecular Biology Center "Severo Ochoa" at the Autonoma University on November 20, 2015 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)