The fountain with drinking water

In different countries and cities I saw many fountains for a drinking.
But for the first time I saw the whole building that was built just to put the fountain inside.

I think it looks like a masterpiece of architecture... at least if to talk about places with clean water.
The mirror windows blend with the nature of the park, and walking along the path between the trees you don't even notice this house.
The only thing that catches your attention from the distance - are noble white pigeons, made of marble. They look so alive!