Paul Grundbacher, a designer and artist from Switzerland, creates amazing hand-cranked marble machines made entirely from wood. He sources firewood from a local factory and believe it or not, “rarely sketches anything beforehand but has the ability to fashion each piece and try it as opposed to carefully measuring things out through any sort of blueprint.” Continue reading to see more.

7. Chaos

6. Lift

5. Fischtreppe

4. Regenschiff

3. Quatro

2. Etagen

1. Archimedis

[Source]