20 Horrifying Images of Auschwitz

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16. The crematorium

This crematorium has been restored by the Auschwitz-Birkenau Memorial and Museum.

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17. Pope John Paul II

Pope John Paul II surrounded by a huge crowd as he walks through the gates of Auschwitz in 1979.

Source: Jochen Zimmermann / Jochen Zimmermann

18. Auschwitz tower

A preserved guard tower near the fence of the camp.

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19. Auschwitz remembered

Mourners lay flowers at the site of a crematorium, circa 1950.

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20. The main gates

This photo, from 2004, shows the railway tracks leading to the main gates of Auschwitz.