10 Things You Don't Know About - Season 1 Episode 10 -

Caligula was a notoriously sadistic Roman Emperor with a wanton disregard for life. Roman citizens, even those with money and power of their own, lived in fear of Caligula's cruelty. In this episode, historian David Eisenbach reveals that Caligula also walked on water, played craps to make Rome rich, and engaged in incest with his own sisters.