The 'White City' (Ciudad Blanca) has fueled the fantasies of generations of archaeologists before revealing its urban remains in 2015. It is today the object of all the attention of the biologists for the unique biodiversity that has developed there and the presence of new species or species thought to be extinct. The scientists have identified 246 species of butterflies, 30 of bats, 57 of amphibians and reptiles among which three - Phylloderma stenops, Rhinobothryum bovallii and Odontochila nicaraguense - had not been observed in the world for several decades.