This was a trilogy:
http://www.koyaanisqatsi.org/
KOYAANISQATSI: life out of balance
POWAQQATSI: life in transformation
NAQOYQATSI: life as war
The films are gorgeous. I do love them but had to sit through the first two too many times when I worked at a Rep Cinema...
I love them because they manage to tell a story (a very encompassing story) of our planet and they do so without dialogue.