Extreme Treadmill

So you really want to push yourself hard and burn those calories? Maybe you want to drop 50 pounds in 5 days? This tank treadmill should help. It may not have all the bells and whistles of modern treadmills but look on the bright side: you actually get to put a good old tank to better use. This is a work of Jennifer Allora and Guillermo Calzadilla.

[via: the Guardian]