Minecraft map is not displayed in minecraft?

I downloaded maps and then moved them to the save folder. The maps are now there too, but when I go inminecraft they are not there. I did something wrong and what can I do?

No idea if you did anything wrong.

Method:

In the saves folder create another folder with a name of your choice and insert the map there and unzip it there. Your created world folder should then appear in the single player.

You can delete the zipped folder or move it to another location.

Just checked me out, all worlds are displayed in Minecraft.