Nothing stops the Juggernaut while on terrain.

[CoffeyTime]

If Jugg is on top of a terrain and uses his "nothing stops the juggernaut" would he "contact" the terrain hes on top of, thus destroying it?

[Negoldar]

When resolving a push the moving character will ignore terrain features it was overlapping at the start of the push. 

Juggernaut’s push will ignore terrain features he is overlapping at the start of the movement.