The bright orange line on the photo below, which was taken from the International Space Station, isn't photoshopped or cleverly highlighted to show an otherwise indiscernable line. It's an actual line of lights separating a hostile Asian border.
It's the border between India and Pakistan, and it clearly shows just how divided these two nations are.
From NASA's Earth Observatory:
The photo also holds another little treat, an aura high above the Earth that seems to curve perfectly with the planet's edge. This glow is created by radiation hitting the Earth's atmosphere, according to the Earth Observatory.
The photo itself was taken with a Nikon D3S digital camera using a 16mm lens and is a bit blurry because of a one second shutter-speed that allowed for additional light absorption.