China has the Great Wall. India has the Taj Mahal. France has the Eiffel Tower and Versailles. In America, we have the national parks—our country’s natural works of art. The parks are our monuments and playgrounds, hosting over 300 million visitors a year. So we took Brad Pitt and photographer Ryan McGinley to three parks in eight days to explore America’s greatest wonders. Ride along for the journey by hitting play above—and be sure to visit the national parks this summer.