What's your favorite (or least favorite) disaster porn?S

This is the era of disaster porn. From Transformers: Dark of the Moon to 2012 to Man of Steel to Star Trek Into Darkness, every movie shows cities being trashed. Sometimes the whole planet gets borked. So what's the most satisfying disaster porn of all time? Or the most gratuitous?

Please include a picture or clip of the wanton destruction, so we can all bask in the humanity of it all.