The National Parks: America's Best Idea Season 1 Episode 3
Episode Title: The Empire of Grandeur: 1915-1919
Countries:
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Airing Date: September 29, 2009
Runtime:120 mins
IMDb Rating:
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The National Parks: America's Best Idea: The history of the U.S. National Parks system, including the initial ideas which led to the world's first national parks and the expansion of the system over 150 years.