America's Healthiest Airports

No. 8: Logan International (Boston)
28 million passengers per year

If you’re a green fanatic, you’ll love this: Logan’s terminal A, its biggest, is the world’s first airport terminal certified by the U.S. Green Building Council for using the highest green-construction standards. It features roofing that reflects heat, special storm-water filtration devices, low-flow faucets, waterless urinals, self-dimming lights, recycled construction materials, and more.

And Logan’s compressed-natural-gas shuttle buses prevent 7 tons of pollution emissions from reaching the atmosphere and causing smog every year, the equivalent of taking nearly 800 cars off the road. You care more about comfort than the environment? Logan pampers all weary travelers with 50 wooden rocking chairs, 16 decorated by local artists.