Replying to What's the name of that movie...?

I need to find this movie for class so I am hoping someone on here can help me out. Its a film about the construction of society and destruction of nature told through a lot of really beautiful timelapse sequences. There is no dialogue, it is just set to a musical score. There are a lot of shots later in the film in the city where it will stop and go into slow motion on one individual. I need to find the film for a class. If you know what I am talking about I will love you forever