The Super Mario Bros. theme has become quite famous since its inception back in 1985 - hum it to pretty much any person on the face of the planet and there's a good chance that they'll recognise it.
If you needed any more confirmation of its fame, then check out the video below. The building is Oslo City Hall in Norway, and as you can hear, its bells are chiming out Koji Kondo's iconic tune.
Mario's music isn't the only thing you'll hear coming from the building - the City Hall has a schedule that can be found here. Other notable pieces are Electricity by Motörhead and Henry Mancini's Moon River.