Although the entire site is done in Flash, it’s worth a look. Here are some of the pieces I found most noteworthy, starting from a cow that lives on top of a 10-story building:
Cow on rooftop
And a tree that was planted in the middle of a football stadium in Chile.
Stadium with tree
It is there, even during football matches. I wonder where they put the ball when the game starts. Must be fun to have some shade.
Tree in football ground