Now this is what I call control
It's not the world's most attractive building, but Taipei 101 is one of the tallest. And when you're that tall, you need something extra to help you out when the earth moves -- in this case it's a huge brass ball in the belfry that sways back and forth to damp down the shaking caused by earthquakes: the largest 'tuned mass damper' in the world.
Watch it in action during the recent Sichuan earthquake. It's as astonishing as the reaction of the people in the tower as it hit.