Ending?

i wasn't sure either but i think they were just looking at the sunset over the valley and didn't see anything specific.

They thought humanity was extinct and they were the last left. They never left there home so there house kinda became the whole world to them. Patrick mentions that they don't even know whats outside the valley. So i think when they saw that it was like seeing the entire world ahead of them.

Hope.

It was just a beautiful vista. As others have already said it was more symbolic than anything, it also refers back to the earlier sunset scene.

I think they saw China... ?

If you look down, beneath the sun, there'as a community there.

A whole new world




Don't you dare close your eyes

Possibly they saw a great wall ;) Since the great wall of china is spoken about earlier in the movie by the kid, and the kids final words were "look dad, I see china", or something :P As in a wall around a settlement.

Besides the nice view, there is a small village with survivors. You can see the smoke from a number of fires rising up.

"I'll do the masterminding around here." -Sgt. Stryker, "Sands of Iwo Jima"