Machu Picchu National Geographic again and with the full support of Peruvian President Leguia. The expedition undertook a four-month clearing of the site with local labour, which was expedited with the support of the Prefect of Cuzco. Excavation started in 1912 with further excavation undertaken in 1914 and 1915. Bingham focused on Machu Picchu because of its fine Inca stonework and well-preserved nature, which had lain undisturbed since the site was abandoned. None of Bingham's several hypotheses explaining the site held up. During his studies, he carried various artifacts back to Yale. One prominent artifact was a set of 15th-century, ceremonial Incan
Secret of the Incas with many of the scenes in "Secret of the Incas" bearing a striking resemblance in tone and structure to scenes in "Raiders of the Lost Ark". Throughout "Secret of the Incas", the main character, Harry Steele, can be seen wearing the "Indiana Jones" outfit: brown leather jacket, fedora, tan pants, an over-the-shoulder bag, and revolver. The character also sometimes wears a light beard, unusual for films of its time, and there is a tomb scene involving a revelatory shaft of light similar to the "Map Room" sequence in "Raiders". "Raiders"' costume designer Deborah Nadoolman Landis noted that the inspiration for