Learn about what threatens the wet, layered forest and what you can do to help. 2 min read More than half of Earth’s rain forests have already been lost due to the human demand for wood and ...

(The National Geographic Society helped fund Bingham on excursions to Machu Picchu in 1912 and 1915.) Bingham believed he had found Vilcabamba, the so-called Lost City of the Inca where the last ...