The Naturtejo Geopark of the Southern plateau stretches through the municipalities of Idanha-a-Nova, Castelo Branco, Nisa, Oleiros, Penamacor, Proença-a-Nova and Vila Velha de Ródão.
The vast geomorphological, geological, paleontological and geometry heritage presents elements of national and international relevance, examples of which are the icnofossils of Penha Garcia, the river canyons of Penha Garcia and Monsanto. The Naturtejo Geopark has the Tejo International Natural Park and the Important Bird areas (Penha Garcia), which bear witness to its ecological richness.
The ancient history of this region has given it numerous castles, churches and palaces, reaching a rare diversity in Portugal. The ruins of the Egyptian Civitas in Idanha-a-Velha, as well as the megalithic regions of Rosmaninhal constitute poles of significant archaeological interest.
The ancestral practices, living testimonies of the multiple singularities of the raian culture, have strong roots in the landscape. The status of "Portugal’s most Portuguese village", conferred on Monsanto, and the villages of Xisto, scattered by the Naturtejo Geopark, are symbols of this ethnographic richness still very well preserved.