Trinidad(sometimes calledTrinidad de Cuba) is a town in the province ofSancti Spíritus, centralCuba. Together with the nearbyValle de los Ingenios, it has been aUNESCOWorld Heritage sitesince 1988. Itwas founded on December 23, 1514byDiego Velázquez de Cuéllarunder the nameVilla de la Santísima Trinidad. Itis one of the best-preserved cities in the Caribbean from the time when thesugar tradewas the main industry in the region.