Wally is five years old and he built a wastewater treatment plant out of Lego.
Really, it's quite impressive. That and his narrated tour of the colorfully snapped-together facility is one of the best things I've seen in a long time. Not something I'd want to step on with bare feet in the dark, though. Check this out.
- How to crochet your very own miniature toilet. Because you know you want to.
- CAREERS: Search for a clean-water career with us