The fountains at The Bellagio Hotel Las Vegas

The Bellagio Hotel (the one that they used in the Oceans 11 film) has a huge lake outside it separating it from the Las Vegas Strip.

In the evening at 15 minute intervals there is a display using water fountains that are choreographed to music ranging from classical, to opera to standards like this one from Frank Sinatra.

This was one that we saw last night to give a taste of what I mean.