This cover from Serbia depict a joint issue (miniature sheet) with Mexico issued in 2021. On right stamp (with the flag of Mexico) we can see 2 mexican monuments, the
Temple of Kukulcán and the
Palacio de Bellas Artes, both part of 2 UNESCO World Heritage Sites: The
Pre-Hispanic City of Chichen-Itza and the
Historic Centre of Mexico City and Xochimilco . Chichen Itza was a large pre-Columbian city built by the Maya people of the Terminal Classic period. The archeological site is located in Tinúm Municipality, Yucatán State, and its classified as an UNESCO World Heritage Site since 1988. The historic center of Mexico City (Spanish: Centro Histórico de la Ciudad de México), is the central neighborhood in Mexico City. This is where the Spaniards began to build what is now modern Mexico City in the 16th century on the ruins of the conquered Tenochtitlan, capital of the Aztec Empire. As the centre of the ancient Aztec Empire and the seat of power for the Spanish colony of New Spain, the Centro Historico contains most of the city's historic sites from both eras as well as a large number of museums. This has made it a World Heritage Site since 1988.
