That Time Cleveland Released 1.5 Million Balloons and Chaos Ensued

Balloons! They're fun, delightfully whimsical environmental disasters. And in 1986, a mass balloon release in Cleveland went really, really wrong, when 1.5 million helium-filled floaters were let loose into the sky, got caught in a storm, drifted down to earth, and caused a hell of a lot of problems. » 4/22/14 9:00am 4/22/14 9:00am

8 Massive Tunnels Being Built Right Now Under A City Near You

Now that we know it was an eight-inch steel pipe that brought the world's largest-diameter tunneling machine to a halt up in Seattle, we can no longer fantasize about Bertha unearthing a five-story-tall buried locomotive. But we can look at something almost as fascinating: The other giant holes that are currently… » 1/07/14 9:20am 1/07/14 9:20am