Nacht Der Untoten building been around in World at War to Cold War.
And Nacht Der Untoten been in almost all the COD Zombies Game which is World at War, Black Ops 1, 2 and 3, and Cold War.
While Black Ops 4 and 6 doesn't unfortunately. So let's hope they bring back the Nacht Der Untoten building again in Black Ops 7.