I couldn't believe there was an International Toilet Museum in India. But it's true. (It has a website, so it must be.)
What's even more lovely than the fact of a toilet museum is its immense seriousness. The founder is in earnest when he says the toilet is the sign of civilisation. He has actually put his ideas into practice by funding public toilets around India which can then be used to generate biogas - a highly environmentally friendly idea compared to just going and shitting in a field somewhere.
There's also a lovely quote from an Urdu poet whose subject matter is farting, shitting, and pissing... I think it loses somewhat in translation :-)