Roman Emperor Caligula's massive party ships were not burned by the Nazis during World War II, researchers say. A US artillery unit was to blame.

Tech Insider
Left, Historical luxury ships — Liebig collectors' card, 1935. Right - Nemi ships built by Caligula, 1st century AD.
Left, Artist impressions of Caligula's luxury Nemi ships — Liebig collectors' card, 1935. Right - Nemi ships built by Caligula, 1st century AD, raised under during Mussolini's dictatorship in the 1930s.

Culture Club/Bridgeman via Getty Images, DE AGOSTINI PICTURE LIBRARY / Getty images

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