How to Turn a Sewage Treatment Plant into a Rock-Climbing Wall

Ever wonder what can be done with an old sewage treatment plant? Well, NL Architects thought of an innovative idea, a climbing gym. Featured on Fast Company’s Design blog, NL Architects designed a rock-climbing wall out of an old sewage treatment plant. Apparently, mountaineering has become extremely popular in the Netherlands in spite of how flat the country is. For more on this project read the Fast Company Design blog post.