big happy hippy house

Here's a good reason to visit Europe.  This thing has a grass roof and 1000 windows, no two of which are the same.  I'm sure the roof is not open to tourists. 

In any case, the architect reminds me of a modern-day Gaudi.

His name is Friedensreich Hundertwasser
http://en.wikipedia.org/wiki/Friedensreich_Hundertwasser