The picture above is a photo of the Trevi Fountain in Rome, and it's probably the world's most famous fountain. According to Top Rated Online, it's the second-most reviewed location on Google Maps -- and that counts all locations, not just fountains. So yeah, it's pretty famous. The image above does not do it justice, so please take a moment to check out this much bigger image via Wikipedia. You'll see Oceanus, the Greek god of the sea, surrounded by merfolk, looking over gallons of flowing water. But you can't quite see the thing below. It's called the Ace of Cups, and it doesn't really fit in with the rest of the sculpture's design. 

But that's OK -- it's probably not there for aesthetic purposes. Most likely, the designer put it in out of spite.

Here's a screenshot from Google Street View. It's the urn-shaped thing behind the two tourists in the center with their faces blurred out. I tossed in a red arrow to make that clear.