STORY: This former detention and torture center in Argentinahas been declared a UNESCO World Heritage SiteIt was used during Argentina's lastmilitary dictatorship from 1976-1983ARGENTINA’S PRESIDENT, ALBERTO FERNANDEZ:"In this year, as we celebrate forty years of democracy, I cannot tell you how reassured I am now that the Naval Mechanics School (ESMA) has been declared a UNESCO-declared site of memory no one in Argentina can deny, forget the horror that took place there."ESMA was once the largest detention center in Argentina during the regimewhich left nearly 30,000 people missing,according to estimates by human rights organizations