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Adolf Hitler pretended to be poor but amassed a huge private fortune. The Führer may have believed he was Jewish. Rigorously fact-checked revelations throw a genuine new light on the Nazi regime.

Recounts the tumultuous history of Cuba, a nation of foreign conquest, freedom fighters and Cold War political machinations.

Seventy years after the liberation of Auschwitz, we have not finished accounting for the destruction of Europe's Jewish population. One question remains today: not why, but how was the Shoah possible?

Historic places, forgotten, threatened and threatening at the same time. Made of steel, poured in concrete or blasted out of a mountain, yesterday's monuments from the great eras of history come alive again.

Treasures of the Earth: Gems, Metals, and Power is a 3-part series that will take us on a journey deep inside Earth to uncover the mysteries of how these treasures were created, and to explore how they have allowed humankind to progress and build our great civilizations. But even as that quest continues, we are discovering that some of our treasures may soon run out or have unintended consequences that bring new perils. Can our ancient treasures reveal new secrets that will help us solve the problems we face today?