For as long as I have known my wife (and I was in the US), we head up the roof on US Independence day and watch the pyrotechnics in every direction. Just down the street, less than a half block, live a group that must spends hundreds if not a couple of thousand dollars on fireworks. They are our primary entertainment year after year as they send of a slew of explosives into the sky over the course of a couple of hours. This is one of their offerings. Fireworks are illegal in Chicago yet one rarely sees the police. They conveniently look the other way and let the people have their fun.