What are these zombie maps in Black Ops?

I was looking at the leaderboards and noticed 4 maps I never saw: nacht der untoten, verr眉ckt, shi no numa, and der riese. What are these and how do I unlock them because I only have kino der toten, five, and dead ops arcade. Thanks.What are these zombie maps in Black Ops?
those are the maps from world at war...and if you want them for black ops you have to buy the hardened addition
the only way to get those maps are to get the hardened edition,prestige edition or go on ebay and bid on the maps.What are these zombie maps in Black Ops?
Their from world at war...if you buy the zombie maps from call of duty 5 u can play them on black ops :)
You need to complete the whole game for one of em i think, I only had three tho! u sure you got five?What are these zombie maps in Black Ops?
To get those maps you need to buy either the Hardened edition for 79.99 or the Prestige edition for 149.99, both of those give you a code to download those maps for black ops, btw those are just the original maps from Call of Duty World at War
You start of with the one mansion looking map. You must beat the entire campaign mode to unlock the 5. Pentagon map. The 4 extra maps you have to buy the prestige version. Not buy them on cod 5.