During WWII, the Nazi regime had plans for the territories they were conquering, including the Soviet Union.
The plan regarding the Soviet Union was essentially to kill or drive all of the people away, and to divide it up into different sections to quell any sense of unity between them.
These provinces would be run by people only accountable to Hitler himself.
The original plan was to set up Moscow as the capital, as it was already the capital and would simply make sense, but as his armies were approaching the city during the 1941 campaign, Hitler decided it would be better to just completely get rid of Moscow.
It was a pretty extreme plan. Hitler wanted to level Moscow, killing its roughly 4 million inhabitants, and then covering it with an artificial late that would cover the whole thing because he thought that it would be a center of resistance.
This plan never came to fruition, however, as the plans to capture Moscow and central Russia failed. Thankfully, the rest of Hitler’s plan would also fail within five years.