25 Unbelievable Historical Photos from Humanity’s Darkest Moments

Most images are imbued with tears and blood, and should be a reminder to mankind that such things should not be repeated.

5. Largest Grave Of Bergen-Belsen

It’s a photograph of “Mass Grave 3”, one of the Nazis concentration camp where over 50,000 people were killed. The man standing among the numerous bodies is the camp doctor named Fritz Klein, who was hanged in December 1945 for his cruelty and brutality.