This is a beautiful sheet of 6 stamps, issued by Mozambique in 2010, honoring United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites in North America. Featured sites shown include the Pre-Hispanic City and National Park of Palenque in Mexico, Pre-Hispanic Town of Uxmal in Mexico, Mesa Verde National Park from the United States, Maya Site of Copan in Honduras, Pre-Hispanic City of Teotihuacan in Mexico, and Pre-Hispanic City of Chichén-Itza in Mexico. The sheet is Scott catalog #2056, and is Post Office fresh, mint never hinged, and F/VF.