"Actually, sir. There's a server in your fly," says the waiter.
Somebody with clearly too much time on their hands has decided it would be a good time to take advantage of the existance of web server-capable chips smaller than the size of a standard housefly. To that end, he has constructed an exhibit that illustrates the "usefulness" of embedding a web server into a standard (or, in this case, slightly large) house fly.
Waste of time? Cruelty to animals? You decide.