The new “Toilet? – Human Waste & Earth’s Future” exhibition at Miraikan in Japan lets visitors experience what its like when their lives are going down the toilet.

Video from a toilet-themed exhibition at a Japanese museum shows schoolkids donning poop hats and sliding down an enormous commode.

Or so the government says. The Japanese government this year launched the Japan Toilet Prize, part of a campaign to improve quality of life by improving the quality of rest- rooms.

As just about any other gaijin living in Japan, I came to love Japanese toilets. They have multiple buttons and functions to play around with, keep your bottom warm during cold days and are ...