Mexico has a list of sites considered World Heritage of UNESCO, 35 to be exact. They are divided between mixed, cultural and natural goods. In the list of natural assets we find six sites, know them! Sian Ka'an in Quintana Roo, since 1987 Its name in Mayan means 'where the sky is born' or 'door of heaven'. How beautiful, no? And it is not far from reality. This reserve is the largest protected area in the Caribbean. It is located in the Yucatan P…