One of the things I found myself photographing in Hong Kong and in Tokyo was reflections. The images I caught of buildings reflected in other buildings are mini worlds that exist only for those who choose to see them.
Rreflections are a different reality. While the building doing the reflecting might not be visually interesting per se and the building being reflected might not be so great, the combination of the two is so wonderful and temporary.
Photographing them is as if life is rewarding you for using your eyes to see, not just look.