This isn’t your average Go-Kart track. This racetrack is on top of a cruise ship. Onboard the Norwegian Bliss, it has two levels and can accommodate 10 karts at once. Cruisers can race family and friends or check out other attractions like this waterslide that goes over the edge of the ship. Plus, there’s a whole lot more going on below deck–like Broadway shows, gorgeous lounges, and a bar dedicated to the Beatles.