You may think this is some real life level of Mario Bros. Or that it's an organ pipe made for a robot giant but it's actually one of the pump stations that keep beautiful New Orleans safe from flooding. It sucks in water from one side and spits it out on the other.
What you're looking at is the 17th Street Canal in New Orleans with the water pumping station flowing into Lake Pontchartrain. It's a lovely piece of machinery that's smartly designed. For example, the discharge pumps are turned upwards so that a little bit of water stays in to keep the pumps wet and prevent it from burning out (if it started dry).