A beautiful cover from United Nations (New York Office), depicting 4 stamps (2 of each type) celebrating 2 Heritage Sites in Cuba:
Trinidad and the Valley de los Ingenios (since 1988) and the
San Pedro de la Roca Castle in Santiago de Cuba. The city of Trinidad was founded in the early 16th century. In 1518, Hernán Cortés began his expedition to conquer Mexico from the port at Trinidad. The city prospered throughout the colonial period in large part due to the success of the local sugar industry. The adjacent Valley de los Ingenios was the origin of the Cuban sugar industry, which emerged in the 18th century. It is home to numerous cane sugar mills, as well as cattle ranches and tobacco plantations. The Castillo de San Pedro de la Roca (also known by the less formal title of Castillo del Morro or as San Pedro de la Roca Castle) is a fortress on the coast of the Cuban city of Santiago de Cuba. About 10 km)southwest of the city centre, it overlooks the bay. The fortress was declared a World Heritage Site by UNESCO in 1997, cited as the best preserved and most complete example of Spanish-American military architecture.
