Chris Gilmour is an English artist that makes wonderful pieces of art using nothing but glue and cardboard. His cardboard masterpieces are incredibly complicated looking as seen in the images above and below of several bicycles he produced. Even more amazing is that most of his work is life-sized.

In addition to these bicycles, he has also made cars, motorcycles (seen below), grandfather clocks, pianos, guitars, and various objects normally not made of cardboard. Check out his website to see it all.