1105 Turquoise in the Southwest


For millennia, turquoise has been the gemstone of choice for jewelers of the Southwest, a tradition that continues, even as the sources dwindle.

1107 Brasilia and Chapada Dos Veadeiros


Brazil’s capital city, far removed from the Amazon, sits on a plateau that is also home to home rugged cliffs, streams, and waterfalls, indigenous communities, homesteads of pioneering families, and habitats found in these mountains and nowhere else.

1109 – The Mississippi River Program


The Mississippi is the largest river in North America and the most destructive of human works, presenting an epic challenge for the Army Corps of Engineers around New Orleans.

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