Layer Estimates:

Layer: Airports__WM (ID:0)
Count: 8
Extent:

XMin: -13688185.9047
YMin: -4558674.5797
XMax: 16149686.6773
YMax: 8389034.2947
Spatial Reference: 102100 (3857)

Layer: Planar_connectors_WM (ID:1)
Count: 12
Extent:

XMin: -20037507.0672
YMin: -4558674.5797
XMax: 20037507.0672
YMax: 8389034.2947
Spatial Reference: 102100 (3857)

Layer: Geodesic_connectors_WM (ID:2)
Count: 10
Extent:

XMin: -20037507.0672
YMin: -10151636.5065
XMax: 20037507.0672
YMax: 16199441.9417
Spatial Reference: 102100 (3857)

Layer: Graticule_WM (ID:3)
Count: 54
Extent:

XMin: -20037508.3428
YMin: -30240971.9584
XMax: 20037508.3428
YMax: 30240971.9584
Spatial Reference: 102100 (3857)