An 11-story building in Albany, New York had to be demolished on Saturday to make room for a new convention center. But instead of just imploding it, they strapped a bunch of FIREWORKS to the outside, and set them off first.
They also set up "daytime fireworks" on the roof, which are the kind that let off colored smoke. Then the actual implosion was like the grand finale.
(Search for "Wellington Hotel Annex Implosion." Fireworks go off at :09, :14, and :21, and the implosion is at :50.)