Great Wall China Full Length Reference Strip 1:1000 v1
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Import this as a non-playable map/draw-size reference asset. It is a 21,196.18-unit strip representing the full 21,196.18 km surveyed Great Wall system at 1:1000 horizontal compression.

Use preserveScale. Y-up, -Z forward, pivot at center ground. Disable gameplay collision unless you only need a debug pick/click collider.

For actual gameplay, use the 100m modules and the 1km/10km draw-test assemblies instead.
