Venezuela is located in northern South America, bordered by the Caribbean Sea, Colombia, Brazil and Guyana. It has a diverse landscape that includes Andes mountains, highlands, plains, and the world's tallest waterfall, Angel Falls. Venezuela has a tropical climate with temperatures ranging from 26-30 degrees Celsius depending on altitude. The population is over 27 million, most of whom are Roman Catholic, and speak Spanish. Venezuela has a federal republic government led by President Hugo Chavez since 1999. The economy relies heavily on oil exports and agriculture. Popular tourist destinations include Caracas, the Andes, and Margarita Island.