I forgot to post this yesterday. If you're avoiding spoilers about the upcoming Batman movie, The Dark Knight, you should stop reading. For everyone else, Fox Chicago caught some sweet footage of filming for Batman. Specifically, an old Brach's Candy factory was blown up as part of the shoot. I'm omitting some further spoilers about what the building was made to look like, but if you click through to the article you can read the details. Below are before and after pictures of the building. Mouseover the block to show the images.

Mouseover below to reveal image, click it to enlarge

Mouseover below to reveal image, click it to enlarge

Mouseover below to reveal image, click it to enlarge

Fox links to video (spoilers!):
Video 1 (from air)
Video 2 (from ground)