Machu Picchu Under Threat From Pressures of Tourism

In 1911, an innkeeper from the Peruvian town of Aguas Calientes led Hiram Bingham on a scramble up a steep, jungle-tangled embankment to the extensive ruins of an Inca settlement that was named Machu Picchu for the neighboring mountain.

Bingham, a professor from Yale University who was exploring in the region, later wondered in his book, Lost City of the Incas, whether anyone would believe what he had found.