Question Transferring world and buildings?

Hey, I need help with a world copy.
I would like to copy a world 1 to 1 from my Bukkit server to another server. But there is no Bukkit running on it.
When I copy the world folder everything that the players have built is missing. I hope you can help me.

Before : https://i.imgur.com/PcA1VT9.png

After: https://i.imgur.com/yEird45.png

 

Does really nobody know a solution?

 

Well, it's weird, cuz i copied 3 worlds from server to another server and everything was as it was on the old server, so, for me at least, it's really weird. The only thing i can imagine is that the servers have a different "level-name:" entry in the server.properties file, but then the terrain wouldn't be the same. Maybe try to go into the world folder and copy everything inside and paste in the world folder of the new server, but im not sure whether it will help.