Breathtaking: World's 25 Most Beautiful Polluted Sunsets

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

Photograph by Alex Smirnov

Company Symbol % Change
7 of 26

#19 Zilina, Slovakia

"The atmosphere is this tiny, little, freaking-thin skin that protects us like a spacesuit," said Phil DeCola, chief science officer at Sigma Space, an aerospace engineering company. "It's very fragile, and we should remember that when we're pumping particulates into it."

Zilina is Slovakia's fourth-biggest city and one of its industrial centers. Surrounded by five mountain ranges, it's located in a valley where two rivers come together.