Simply put, this is the most creative musical instrument (or contraption) we've seen, requiring you to drive over a specially designed stretch of pavement to play a series of notes. Video after the break. Click here for more pictures.
...the 'melody road', can be seen above and the grooves are between 6 and 12mm apart: the narrower the interval, the higher the pitch. these stretches of road, each playing a different tune, can currently be found in 3 places in japan - hokkaido, wakayama and gunma - with the optimum musical speed being a depressingly slow 28mph[via DeputyDog]