Water has always been a tricky thing in Australia, the world′s driest inhabited continent. But global climate change is making the problem more severe.
Beware the dangers that lie deep beneath South Africa, the source of the largest gold reserves in the world's deepest gold mine.
Switzerland is revolutionizing Euro transit, using the world's largest boring machine to build the longest tunnel... under the Alps!
I visited New Orleans for an episode on Build it Bigger about the houses being built under the auspices of the Make It Right Foundation.