That's a real public bathroom in London. Actually, it started life as an art exhibit called Don't Miss a Sec, making it possibly the only artwork in the world that you're not only allowed to defecate on, but expected to. From the outside, it looks like the bathroom the Predator would use:
"If it poops we can kill it."
The artist, Monica Bonvicini, claims that the idea is that you can answer the call of nature without having to stop looking at things (the bathroom was erected near an art exhibition), but we suspect that what she was really doing was seeing if anyone was trusting enough to take a leak in there without assuming that the walls would turn transparent and a group of Japanese businessmen would crowd around to watch.
And people will be watching. A weird, mirrored space-cube in the middle of the sidewalk is the kind of thing that gets your attention. Just imagine trying to take a dump while a curious child cups his hands over the glass and starts staring directly toward your private areas.