CERN on Saturday is quietly inspiring; in addition to exploring the normally off-limits areas, you get to meet physicists when they are most open and expressive, and delve into all sorts of normally guarded topics such as philosophy, creativity and even their dreams.

And on Saturdays, there are added uncertainties and dangers that make themselves apparent, due to the more contemplative possibilities when things are quiet on the site… Black holes, decoherence, ghost particles are all just beneath our feet!