Geography
This map shows the approximate Jewish death toll, separated by countries, during the Holocaust. While many people focus on countries in Eastern Europe, the map shows how many Jewish populations in other countries were also affected by the Holocaust.
And...
This map shows the different locations of Nazi concentration and extermination camps. It also shows the expanded boundaries of Germany during WWII, and how the Germans developed these camps outside of their pre-1939 national borders during their expansion.