Founded by Diego Velazquez in 1514, it was declared by UNESCO a World Heritage Site in 1988. This city flourished between the 17th and 19th centuries thanks to sugar cane and slave trade, reflected in the buildings around the Main Square. The original cobble stone streets and pastel colored houses give the impression that time has scarcely moved on since colonial times. Trinidad offers a wide variety of architectural details such as red tile roofs, wooden beams, ornamental wrought iron grates and high windows which set slightly above ground level having strong wooden shutters.