On an icy Geneva morning there’s nothing that warms you up like a visit to the Antimatter Factory. Using proton decellerators, CERN is the world’s biggest source of anti-hydrogen, which can last up to a year in their magnetic traps. It is most expensive substance on Earth.

And on the way, stop by the ‘G-Bar’, which looks a bit like a bad and hazardous nightclub (some CERN scientists have a “special” logo design style). There’s even remnants of signs I put up a decade ago…