In 2008, Czech master glassblower Michal Zahradník built a steam engine entirely out of glass! There are no seals here, just snug-fitting glass. This is a replica of an early locomotive steam engine designed by George and/or Robert Stephenson…

If you’re anything like me, you will watch this entire video waiting for something to blow up or break (which happened often, according to the video description).

via the Presurfer