17. Chichen Itza, Mexico
The famous Chichen Itza was once swallowed by the jungle, suffering from centuries of abandonment and looting. Mayan temples and pyramids faced collapse as precious stones and artifacts disappeared. With the intervention of Mexican authorities and the support of UNESCO, major restoration and protection efforts began, reviving this remarkable city and securing its place as a jewel of ancient Mesoamerica. Discover more at UNESCO.
