Wikipedia has a very surprising depth of articles on toilets and bathrooms, and most of it is serious (not toilet humor). Simply look at Category:Toilets!
|If you've ever owned a kitten, then you know this is no joke.|
|This Finnish restroom discourages intravenous drug use with blue light, which makes it hard to see veins.|
|This sink-toilet is a replica of those found at the Guantánamo Bay detention center.|
All that, and no poop jokes. I think I've finally grown up. Happy reading!