4,4 at zoom 3
8,8 at zoom 4
16,16 at zoom 5
32,32 at zoom 6
64,64 at zoom 7
128,128 at zoom 8
256,256 at zoom 9
512,512 at zoom 10
1024,1024 at zoom 11
2048,2048 at zoom 12 -- use this for tiles@home
4096,4096 at zoom 13
8192,8192 at zoom 14
16384,16384 at zoom 15
Latitude: -85.051100 to 85.051100
Longitude: -180.000000 to 180.000000
Size: 360.000000 x 170.102200
Centre: 0.000000, 0.000000
