Do we really know the reason why the biggest empires collapsed? The visualization proposes a new historical, geographical and demographical render of 21 big emperors since 2500 years ago. Empires are visualized according to the moment and reason of their fall: more information about size, population, govern and geography are visually provided for each one. Download the english translation of the visualization at this link: http://www.accurat.it/files/corriere/06_empires_strike_again.pdf