1 - In The air...

           1 level                      2 level  Astral Plane
                                                  ... 
          /     /     /                           /
         1-----1-----1               1-----1-----1
         |     |     |              /|    /|    /|
         |/    |/    |/              |     |     |
         1-----1-----1(+)            1-----1-----1
         |     |     |\             /|    /|    /|
         |/    |/    |...            |     |     |
         1-----1-----1 Midgaard      1-----1-----1
         |     |     | (Temple      /|    /|    /|
         |/    |/    |/ Square)      |     |     |
         1-----1-----1               1-----1-----1
                                    /     /     /