Nicaraguan President Daniel (R) Ortega gestures as he delivers a speech next to Cuban President Raul Castro (3-L), Venezuela&amp;#39;s President Nicolas Maduro (2-L) and Venezuelan First Lady Cilia Flores, during a massive rally at Revolution Square in Havana in honor of Cuban late leader Fidel Castro.
Castro -- who ruled from 1959 until an illness forced him to hand power to his brother Raul in 2006 -- died Friday at age 90. The cause of death has not been announced. / AFP / JUAN BARRETO        (Photo credit should read JUAN BARRETO/AFP/Getty Images)