How can cities plan for growth?
What are modern cities doing to accommodate growing populations?
HowStuffWorks: How Porta Potties Work
You can find porta-potties at festivals, construction sites and concerts across the planet – but how do they work? Get a closer (non-messy) look here.
HowStuffWorks: 10 Weird Sea Creatures
The ocean’s depths are one of the most mysterious areas on the planet – and the inhabitants of this murky domain are stranger than anything you’ll find on land.