Villa Saint Dominique

In Rome, there are these things on the street with a spout of water coming out downwards. It is drinking water, like all the fountains. My brother and I would fill our water bottles up with it, but we finally realized when we saw someone else do this, that if you put your finger over the opening the goes downwards, the water will come out the other hole, the shoots the water up, so it is like a bubbler. This is kind of confusing (sorry!), but once I get the picture up here, you'll see what I mean.