Stamps Category PATRIMONIO MUNDIAL DE LA HUMANIDAD

SPAIN - Alhambra, Generalife and Albaicín, Granada
Juan Martinez Ferrer
UNITED STATES: Fortress and historic site of San Juan de Puerto Rico
Juan Martinez Ferrer
SPAIN - Pyrenees - Monte Perdido
Juan Martinez Ferrer
SPAIN - Doñana National Park
Juan Martinez Ferrer
SPAIN: - The Valencia Silk Exchange
Juan Martinez Ferrer
SPAIN - Historic fortified city of Cuenca
Juan Martinez Ferrer
ARGENTINA: Jesuit Missions of the Guaraníes
Juan Martinez Ferrer
ESTONIA: Tallinn Old Town
Juan Martinez Ferrer
LITHUANIA - Vilnius Center
Juan Martinez Ferrer
AZERBAIJAN: Fortified city of Baku with Shirvanshah Palace and Vergen Tower
Juan Martinez Ferrer