Breathtaking: World's 25 Most Beautiful Polluted Sunsets

By Tom Randall - 2011-11-28T03:40:43Z

Photograph by Dante Busquets/Anzenberger/Redux

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#18 Monterrey, Mexico

CEDIM design school is located in the outskirts of Monterrey, one of Mexico's commercial centers. The city's per-capita income is the highest in the country, and its small-particle pollution is second-highest.