David Gallaugher, Kevin James, and Jacob Jebailey of the Dalhousie School of Architecture decided that the world will be a better place if you can walk on grass - even in the urban concrete jungle - so they created this grass-lined wheel!
So ... you can walk or jog to work and not feel as if you are in the city - it will also keep the rain off (more or less) and can be used as a shelter for the homeless (c: