Naked Ladies

It was recently pointed out to me that every park in Zurich, and quite possibly all of Switzerland, has a statue of a naked lady. Every since, I have noticed that this statement holds true. I have seen statutes of naked women standing, sitting, laying down, running and sunbathing. I find it odd that in a city so reserved and conservation, every park (which happens to be every three blocks) has a pair of ta-tas for all to see.